DSA-6360-1 squid - security update
Multiple security issues were discovered in the Squid proxy caching server, which could result in information disclosure or denial of service. https://security-tracker.debian.org/tracker/DSA-6360-1
CSIRTS triage
- What
- Multiple security issues could result in information disclosure or denial of service.
- Who is affected
- Deployments of Squid are affected.
- Urgency
- Remediation is important to prevent service disruption and information leaks.
- Action
- Update to the latest version of Squid.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://lists.debian.org/debian-security-announce/2026/msg00271.html
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Moderate exploitation riskCVE-2026-335151.0% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 60% of all scored CVEs.
- Moderate exploitation riskCVE-2026-335268.9% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 95% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-33515 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-33526 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-47729 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-50012 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- unknownMultiple vulnerabilities in Squid (June 23, 2026)cert-fr-avis
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