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11 vulnerabilities found for by squid-cache
CVE-2025-62168 (GCVE-0-2025-62168)
Vulnerability from cvelistv5
Published
2025-10-17 16:21
Modified
2025-11-05 17:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
Summary
Squid is a caching proxy for the Web. In Squid versions prior to 7.2, a failure to redact HTTP authentication credentials in error handling allows information disclosure. The vulnerability allows a script to bypass browser security protections and learn the credentials a trusted client uses to authenticate. This potentially allows a remote client to identify security tokens or credentials used internally by a web application using Squid for backend load balancing. These attacks do not require Squid to be configured with HTTP authentication. The vulnerability is fixed in version 7.2. As a workaround, disable debug information in administrator mailto links generated by Squid by configuring squid.conf with email_err_data off.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: < 7.2 |
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CVE-2025-54574 (GCVE-0-2025-54574)
Vulnerability from cvelistv5
Published
2025-08-01 18:02
Modified
2025-11-05 17:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
Squid is a caching proxy for the Web. In versions 6.3 and below, Squid is vulnerable to a heap buffer overflow and possible remote code execution attack when processing URN due to incorrect buffer management. This has been fixed in version 6.4. To work around this issue, disable URN access permissions.
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: < 6.4 |
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},
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}
],
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}
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CVE-2024-45802 (GCVE-0-2024-45802)
Vulnerability from cvelistv5
Published
2024-10-28 14:36
Modified
2025-11-03 20:39
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-20 - Improper Input Validation
Summary
Squid is an open source caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to Input Validation, Premature Release of Resource During Expected Lifetime, and Missing Release of Resource after Effective Lifetime bugs, Squid is vulnerable to Denial of Service attacks by a trusted server against all clients using the proxy. This bug is fixed in the default build configuration of Squid version 6.10.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: >= 3.0, < 6.10 |
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"product": "squid",
"vendor": "squid-cache",
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}
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}
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"vendor": "squid-cache",
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}
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CVE-2024-37894 (GCVE-0-2024-37894)
Vulnerability from cvelistv5
Published
2024-06-25 19:39
Modified
2025-11-03 20:38
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-787 - Out-of-bounds Write
Summary
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Out-of-bounds Write error when assigning ESI variables, Squid is susceptible to a Memory Corruption error. This error can lead to a Denial of Service attack.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: >= 3.0, <= 3.5.28 Version: >= 4.0, <= 4.16 Version: >= 5.0, <= 5.9 Version: >= 6.0, <= 6.9 |
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"timestamp": "2024-06-26T14:07:04.077026Z",
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"vendor": "squid-cache",
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}
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"advisory": "GHSA-wgvf-q977-9xjg",
"discovery": "UNKNOWN"
},
"title": "Squid vulnerable to heap corruption in ESI assign"
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"datePublished": "2024-06-25T19:39:02.376Z",
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CVE-2024-25111 (GCVE-0-2024-25111)
Vulnerability from cvelistv5
Published
2024-03-06 18:14
Modified
2025-11-03 20:36
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-674 - Uncontrolled Recursion
Summary
Squid is a web proxy cache. Starting in version 3.5.27 and prior to version 6.8, Squid may be vulnerable to a Denial of Service attack against HTTP Chunked decoder due to an uncontrolled recursion bug. This problem allows a remote attacker to cause Denial of Service when sending a crafted, chunked, encoded HTTP Message. This bug is fixed in Squid version 6.8. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives. There is no workaround for this issue.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: >= 3.5.27, < 6.8 |
{
"containers": {
"adp": [
{
"affected": [
{
"cpes": [
"cpe:2.3:a:netapp:bluexp:-:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "bluexp",
"vendor": "netapp",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:squid-cache:squid:3.5.27:*:*:*:*:*:*:*"
],
"defaultStatus": "unknown",
"product": "squid",
"vendor": "squid-cache",
"versions": [
{
"lessThan": "6.8",
"status": "affected",
"version": "3.5.27",
"versionType": "custom"
}
]
},
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CVE-2023-46728 (GCVE-0-2023-46728)
Vulnerability from cvelistv5
Published
2023-11-06 17:13
Modified
2025-11-03 18:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-476 - NULL Pointer Dereference
Summary
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| squid-cache | squid |
Version: < 6.0.1 |
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CVE-2023-46847 (GCVE-0-2023-46847)
Vulnerability from cvelistv5
Published
2023-11-03 07:58
Modified
2025-11-20 07:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Summary
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Version: 3.2.0.1 < 6.4 |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2023-46848 (GCVE-0-2023-46848)
Vulnerability from cvelistv5
Published
2023-11-03 07:58
Modified
2025-11-20 07:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Summary
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Version: 5.0.3 ≤ |
||||||||||||||||||||||||||||||||||
|
||||||||||||||||||||||||||||||||||
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CVE-2023-5824 (GCVE-0-2023-5824)
Vulnerability from cvelistv5
Published
2023-11-03 07:56
Modified
2025-11-06 20:51
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-755 - Improper Handling of Exceptional Conditions
Summary
A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 8090020231130092412.a75119d5 < * cpe:/a:redhat:enterprise_linux:8::appstream |
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|
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CVE-2023-46846 (GCVE-0-2023-46846)
Vulnerability from cvelistv5
Published
2023-11-03 07:33
Modified
2025-11-20 07:06
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Summary
SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||
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Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Version: 2.6 ≤ |
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CVE-2019-18860 (GCVE-0-2019-18860)
Vulnerability from cvelistv5
Published
2020-03-20 20:32
Modified
2025-11-05 17:04
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.
References
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