CVE-2025-47905

varnish: Varnish Cache is a high-performance HTTP accelerator

CVE-2025-47905 is fixed in 4 products on 1 platform, first by RHSA-2025:8550, released May 13, 2025. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.1
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0037
30th percentile

Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up. Security Fix(es): * varnish: request smuggling attacks (CVE-2025-47905) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
varnish · Debian 11.6 (bullseye) 6.5.1-1+deb11u5 DLA-4187-1 May 28, 2025
varnish · Debian 12.15 (bookworm) 7.1.1-2+deb12u1 DEBIAN-CVE-2025-47905 May 13, 2025
varnish · Debian 13.5 (trixie) 7.7.0-2 DEBIAN-CVE-2025-47905 May 13, 2025
varnish · RHEL 10 7.6.1-2.el10_0.1 RHSA-2025:8550 May 13, 2025
varnish · RHEL 8 0:6.0.13-1.module+el8.10.0+23111+831cc069.1 RHSA-2025:8336 Jun 2, 2025
varnish · RHEL 9 0:6.6.2-6.el9_6.1 RHSA-2025:8337 Jun 2, 2025
varnish · almalinux 10 7.6.1-2.el10_0.1 ALSA-2025:8550 Jun 4, 2025
varnish · almalinux 8 6.0.13-1.module_el8.10.0+4003+9759c3c1.1 ALSA-2025:8336 Jun 2, 2025
varnish · almalinux 9 6.6.2-6.el9_6.1 ALSA-2025:8337 Jun 2, 2025
varnish · ol 10 0:7.6.1-2.el10_0.1 ELSA-2025-8550 Jun 26, 2025
varnish · ol 8 0:6.0.13-1.module+el8.10.0+90594+95ad0b53.1 ELSA-2025-8336 Jun 2, 2025
varnish · ol 9 0:6.6.2-6.el9_6.1 ELSA-2025-8337 Jun 2, 2025
varnish · rocky 10 0:7.6.1-2.el10_0.1 RLSA-2025:8550 Oct 3, 2025
varnish · rocky 8 0:6.0.13-1.module+el8.10.0+1982+334a201b.1 RLSA-2025:8336 Jul 29, 2025
varnish · rocky 9 0:6.6.2-6.el9_6.1 RLSA-2025:8337 Oct 4, 2025
varnish-devel · RHEL 8 0:6.0.13-1.module+el8.10.0+23111+831cc069.1 RHSA-2025:8336 Jun 2, 2025
varnish-devel · RHEL 9 0:6.6.2-6.el9_6.1 RHSA-2025:8337 Jun 2, 2025
varnish-devel · almalinux 10 7.6.1-2.el10_0.1 ALSA-2025:8550 Jun 4, 2025
varnish-devel · almalinux 8 6.0.13-1.module_el8.10.0+4003+9759c3c1.1 ALSA-2025:8336 Jun 2, 2025
varnish-devel · almalinux 9 6.6.2-6.el9_6.1 ALSA-2025:8337 Jun 2, 2025
varnish-devel · ol 10 0:7.6.1-2.el10_0.1 ELSA-2025-8550 Jun 26, 2025
varnish-devel · ol 8 0:6.0.13-1.module+el8.10.0+90594+95ad0b53.1 ELSA-2025-8336 Jun 2, 2025
varnish-devel · ol 9 0:6.6.2-6.el9_6.1 ELSA-2025-8337 Jun 2, 2025
varnish-docs · RHEL 8 0:6.0.13-1.module+el8.10.0+23111+831cc069.1 RHSA-2025:8336 Jun 2, 2025
varnish-docs · RHEL 9 0:6.6.2-6.el9_6.1 RHSA-2025:8337 Jun 2, 2025
varnish-docs · almalinux 10 7.6.1-2.el10_0.1 ALSA-2025:8550 Jun 4, 2025
varnish-docs · almalinux 8 6.0.13-1.module_el8.10.0+4003+9759c3c1.1 ALSA-2025:8336 Jun 2, 2025
varnish-docs · almalinux 9 6.6.2-6.el9_6.1 ALSA-2025:8337 Jun 2, 2025
varnish-docs · ol 10 0:7.6.1-2.el10_0.1 ELSA-2025-8550 Jun 26, 2025
varnish-docs · ol 8 0:6.0.13-1.module+el8.10.0+90594+95ad0b53.1 ELSA-2025-8336 Jun 2, 2025
varnish-docs · ol 9 0:6.6.2-6.el9_6.1 ELSA-2025-8337 Jun 2, 2025
varnish-modules · RHEL 8 0:0.15.0-6.module+el8.10.0+21682+bcdd3a30 RHSA-2025:8336 Jun 2, 2025
varnish-modules · almalinux 8 0.15.0-6.module_el8.9.0+3826+307eaba4 ALSA-2025:8336 Jun 2, 2025
varnish-modules · ol 8 0:0.15.0-6.module+el8.10.0+90594+95ad0b53 ELSA-2025-8336 Jun 2, 2025
varnish-modules · rocky 8 0:0.15.0-6.module+el8.5.0+677+2a78a869 RLSA-2025:8336 Jul 29, 2025

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