CVE-2025-47905 The advisory has been revoked - it doesn't affect any version of package varnish (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALMALINUX10-VARNISH-10332691
- published9 Jun 2025
- disclosed2 Jun 2025
Introduced: 2 Jun 2025
CVE-2025-47905 (opens in a new tab)Amendment
The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream varnish package and not the varnish package as distributed by AlmaLinux.
Varnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.
References
- https://errata.almalinux.org/8/ALSA-2025-8336.html
- https://errata.almalinux.org/9/ALSA-2025-8337.html
- https://errata.almalinux.org/10/ALSA-2025-8550.html
- https://access.redhat.com/security/cve/CVE-2025-47905
- https://access.redhat.com/errata/RHSA-2025:8336
- https://access.redhat.com/errata/RHSA-2025:8337
- https://access.redhat.com/errata/RHSA-2025:8550
- https://varnish-cache.org/security/VSV00016.html
- http://www.openwall.com/lists/oss-security/2025/05/15/2
- https://lists.debian.org/debian-lts-announce/2025/05/msg00040.html