CVE-2026-34475 affects Varnish Cache versions prior to 8.0.1 and Varnish Enterprise before 6.0.16r12, where specific unchecked URL scenarios involving a root path (/) for HTTP/1.1 can lead to cache poisoning or authentication bypass. This vulnerability is rated Medium with a CVSS score of 5.4, indicating a network attack vector but requiring high attack complexity. The potential impact includes limited confidentiality and integrity compromise. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion or media coverage for this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 7.0.0, < 8.0.1CPE match | cpe:2.3:a:varnish-software:varnish_cache:*:technology_preview1:*:*:lts:*:*:* | ||
<= 6.0.15CPE matchmatch criteria | cpe:2.3:a:varnish-software:varnish_enterprise:*:*:*:*:*:*:*:* | ||
6.0.16CPE matchmatch criteria | cpe:2.3:a:varnish-software:varnish_enterprise:6.0.16:r1:*:*:*:*:*:* | ||
6.0.16CPE matchmatch criteria | cpe:2.3:a:varnish-software:varnish_enterprise:6.0.16:r10:*:*:*:*:*:* | ||
6.0.16CPE matchmatch criteria | cpe:2.3:a:varnish-software:varnish_enterprise:6.0.16:r11:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.