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CERTFR-2026-AVI-0350
Vulnerability from certfr_avis - Published: 2026-03-25 - Updated: 2026-03-25
De multiples vulnérabilités ont été découvertes dans Squid. Elles permettent à un attaquant de provoquer un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "squid versions ant\u00e9rieures \u00e0 7.5",
"product": {
"name": "Squid",
"vendor": {
"name": "Squid",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-32748",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-32748"
},
{
"name": "CVE-2026-33526",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33526"
},
{
"name": "CVE-2026-33515",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-33515"
}
],
"initial_release_date": "2026-03-25T00:00:00",
"last_revision_date": "2026-03-25T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0350",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-03-25T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Squid. Elles permettent \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Squid",
"vendor_advisories": [
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 Squid GHSA-84p4-hcx7-jj7c",
"url": "https://github.com/squid-cache/squid/security/advisories/GHSA-84p4-hcx7-jj7c"
},
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 Squid GHSA-f9p7-3jqg-hhvq",
"url": "https://github.com/squid-cache/squid/security/advisories/GHSA-f9p7-3jqg-hhvq"
},
{
"published_at": "2026-03-25",
"title": "Bulletin de s\u00e9curit\u00e9 Squid GHSA-hpfx-h48q-gvwg",
"url": "https://github.com/squid-cache/squid/security/advisories/GHSA-hpfx-h48q-gvwg"
}
]
}
CVE-2026-32748 (GCVE-0-2026-32748)
Vulnerability from cvelistv5 – Published: 2026-03-26 00:11 – Updated: 2026-06-30 12:07
VLAI
EPSS
Title
Squid has Denial of Service in ICP Response handling
Summary
Squid is a caching proxy for the Web. Prior to version 7.5, due to premature release of resource during expected lifetime and heap Use-After-Free bugs, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. This bug is fixed in Squid version 7.5.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
18 references
Impacted products
19 products
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CVE-2026-33515 (GCVE-0-2026-33515)
Vulnerability from cvelistv5 – Published: 2026-03-26 00:13 – Updated: 2026-03-26 14:19
VLAI
EPSS
Title
Squid has issues in ICP message handling
Summary
Squid is a caching proxy for the Web. Prior to version 7.5, due to improper input validation, Squid is vulnerable to out of bounds read when handling ICP traffic. This problem allows a remote attacker to receive small amounts of memory potentially containing sensitive information when responding with errors to invalid ICP requests. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem cannot be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/squid-cache/squid/security/adv… | x_refsource_CONFIRM |
| https://github.com/squid-cache/squid/pull/2220 | x_refsource_MISC |
| https://github.com/squid-cache/squid/pull/2220#di… | x_refsource_MISC |
| https://github.com/squid-cache/squid/commit/8138e… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2026/03/25/4 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| squid-cache | squid |
Affected:
< 7.5
|
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CVE-2026-33526 (GCVE-0-2026-33526)
Vulnerability from cvelistv5 – Published: 2026-03-26 00:16 – Updated: 2026-06-30 12:07
VLAI
EPSS
Title
Squid vulnerable to Denial of Service in ICP Request handling
Summary
Squid is a caching proxy for the Web. Prior to version 7.5, due to heap Use-After-Free, Squid is vulnerable to Denial of Service when handling ICP traffic. This problem allows a remote attacker to perform a reliable and repeatable Denial of Service attack against the Squid service using ICP protocol. This attack is limited to Squid deployments that explicitly enable ICP support (i.e. configure non-zero `icp_port`). This problem _cannot_ be mitigated by denying ICP queries using `icp_access` rules. Version 7.5 contains a patch.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
18 references
Impacted products
19 products
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Trend slope:
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(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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