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Vulnerability from cleanstart
Published
2026-07-30 07:10
Modified
2026-07-30 09:38
Summary
Security fixes in curl 7.78.0-r0
Details
Package curl version 7.78.0-r0 fixes 4 vulnerabilities: CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-22925
References
| URL | Type | ||||
|---|---|---|---|---|---|
|
|||||
{
"affected": [
{
"package": {
"ecosystem": "Alpine",
"name": "curl"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.78.0-r0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.78.0-r0"
]
}
],
"credits": [],
"database_specific": {},
"details": "Package curl version 7.78.0-r0 fixes 4 vulnerabilities: CVE-2021-22922, CVE-2021-22923, CVE-2021-22924, CVE-2021-22925",
"id": "CLEANSTART-2026-EQ22417",
"modified": "2026-07-30T09:38:45Z",
"published": "2026-07-30T07:10:53Z",
"references": [
{
"type": "WEB",
"url": "https://curl.se/"
}
],
"related": [],
"schema_version": "1.7.3",
"summary": "Security fixes in curl 7.78.0-r0",
"upstream": [
"CVE-2021-22922",
"CVE-2021-22923",
"CVE-2021-22924",
"CVE-2021-22925"
]
}
CVE-2021-22922 (GCVE-0-2021-22922)
Vulnerability from cvelistv5 – Published: 2021-08-05 00:00 – Updated: 2026-04-16 14:09
VLAI
EPSS
VEX
Summary
When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and theclient can then download the file from one or several of them. In a serial orparallel manner.If one of the servers hosting the contents has been breached and the contentsof the specific file on that server is replaced with a modified payload, curlshould detect this when the hash of the file mismatches after a completeddownload. It should remove the contents and instead try getting the contentsfrom another URL. This is not done, and instead such a hash mismatch is onlymentioned in text and the potentially malicious content is kept in the file ondisk.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-840 - Business Logic Errors (CWE-840)
Assigner
References
10 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | https://github.com/curl/curl |
Affected:
curl 7.27.0 to and including 7.77.0
|
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CVE-2021-22923 (GCVE-0-2021-22923)
Vulnerability from cvelistv5 – Published: 2021-08-05 00:00 – Updated: 2024-11-19 14:25
VLAI
EPSS
VEX
Summary
When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often contrary to the user's expectations and intentions and without telling the user it happened.
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-319 - Cleartext Transmission of Sensitive Information (CWE-319)
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | https://github.com/curl/curl |
Affected:
curl 7.27.0 to and including 7.77.0
|
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CVE-2021-22924 (GCVE-0-2021-22924)
Vulnerability from cvelistv5 – Published: 2021-08-05 20:16 – Updated: 2025-06-09 15:02
VLAI
EPSS
VEX
Summary
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-20 - Improper Input Validation (CWE-20)
Assigner
References
15 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | https://github.com/curl/curl |
Affected:
curl 7.10.4 to and include curl 7.77.0
|
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},
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"tags": [
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],
"title": "CVE Program Container"
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"confidentialityImpact": "LOW",
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CVE-2021-22925 (GCVE-0-2021-22925)
Vulnerability from cvelistv5 – Published: 2021-08-05 00:00 – Updated: 2026-04-16 16:36
VLAI
EPSS
VEX
Summary
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-200 - Information Disclosure (CWE-200)
Assigner
References
12 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | https://github.com/curl/curl |
Affected:
curl 7.7 to and including 7.77.0
|
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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