Red Hat Security Advisory: squid security update
Two denial of service vulnerabilities have been identified in Squid, a high-performance proxy caching server, related to Internet Cache Protocol (ICP) handling. The first vulnerability (CVE-2026-33526) involves a heap use-after-free condition, and the second (CVE-2026-32748) involves denial of service via crafted ICP traffic. These issues affect multiple Red Hat Enterprise Linux 9. 4 Extended Update Support variants. Red Hat has released security updates addressing these vulnerabilities. The advisory rates the impact as Important and provides updated packages for affected systems.
AI Analysis
Technical Summary
Red Hat Product Security has issued an advisory for Squid proxy server vulnerabilities that allow denial of service attacks. The first vulnerability (CVE-2026-33526) is a heap use-after-free in ICP handling, and the second (CVE-2026-32748) is a denial of service triggered by crafted ICP traffic. Both vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related packages. The advisory includes updated Squid packages that fix these issues. No CVSS scores are provided in the advisory, but the severity is rated as Important by Red Hat.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Squid proxy servers, potentially disrupting proxy services. There is no indication of code execution or data compromise. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated Squid packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.4 Extended Update Support versions should apply the provided security updates promptly. Detailed update instructions are available in the Red Hat advisory (RHSA-2026:10255) and related documentation. No additional mitigation actions are specified or required beyond applying the official patches.
Red Hat Security Advisory: squid security update
Description
Two denial of service vulnerabilities have been identified in Squid, a high-performance proxy caching server, related to Internet Cache Protocol (ICP) handling. The first vulnerability (CVE-2026-33526) involves a heap use-after-free condition, and the second (CVE-2026-32748) involves denial of service via crafted ICP traffic. These issues affect multiple Red Hat Enterprise Linux 9. 4 Extended Update Support variants. Red Hat has released security updates addressing these vulnerabilities. The advisory rates the impact as Important and provides updated packages for affected systems.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat Product Security has issued an advisory for Squid proxy server vulnerabilities that allow denial of service attacks. The first vulnerability (CVE-2026-33526) is a heap use-after-free in ICP handling, and the second (CVE-2026-32748) is a denial of service triggered by crafted ICP traffic. Both vulnerabilities affect Red Hat Enterprise Linux 9.4 Extended Update Support and related packages. The advisory includes updated Squid packages that fix these issues. No CVSS scores are provided in the advisory, but the severity is rated as Important by Red Hat.
Potential Impact
Successful exploitation of these vulnerabilities can cause denial of service conditions in Squid proxy servers, potentially disrupting proxy services. There is no indication of code execution or data compromise. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated Squid packages that address these vulnerabilities. Users of affected Red Hat Enterprise Linux 9.4 Extended Update Support versions should apply the provided security updates promptly. Detailed update instructions are available in the Red Hat advisory (RHSA-2026:10255) and related documentation. No additional mitigation actions are specified or required beyond applying the official patches.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:10255
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-33526"]
- Cvss Version
- null
Threat ID: 6a160984e29bf47b50650867
Added to database: 5/26/2026, 8:58:44 PM
Last enriched: 5/26/2026, 10:30:57 PM
Last updated: 5/27/2026, 4:58:42 AM
Views: 2
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