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CVE-2026-33515

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 q
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:983a1d36b5bb2d9893fa8f23ddf2ef537647122b16544ff2b6966a901645e9b5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-1289","description":"CWE-1289: Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"squid","vendor":"squid-cache","versions":[{"status":"affected","version":"< 7.5"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-1289","description":"CWE-1289: Improper Validation of Unsafe Equivalence in Input","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/problemTypes/1/descriptions/0

Source references

5 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/03/25/4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/adp/0/references/0
{"name":"https://github.com/squid-cache/squid/commit/8138e909d2058d4401e0ad49b583afaec912b165","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/commit/8138e909d2058d4401e0ad49b583afaec912b165"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/references/3
{"name":"https://github.com/squid-cache/squid/pull/2220","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/pull/2220"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/references/1
{"name":"https://github.com/squid-cache/squid/pull/2220#discussion_r2727683637","tags":["x_refsource_MISC"],"url":"https://github.com/squid-cache/squid/pull/2220#discussion_r2727683637"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/references/2
{"name":"https://github.com/squid-cache/squid/security/advisories/GHSA-84p4-hcx7-jj7c","tags":["x_refsource_CONFIRM"],"url":"https://github.com/squid-cache/squid/security/advisories/GHSA-84p4-hcx7-jj7c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6d1402cffed1653d22dcb024cb3d0a2e88c16ca48459fe4bbabdb56d842b4d99 · sha256:7a22622f3bab37f6… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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