Is there a public exploit for CVE-2026-125371?

No public exploit for CVE-2026-125371 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-125371?

CVE-2026-125371 scores CVSS 6.3 (v4.0), rated medium.

What does CVE-2026-125371 affect?

CVE-2026-125371 affects Tinyproxy Tinyproxy.

6.3 Medium

Tinyproxy through 1.11.3 contains an access control bypass vulnerability in aclstringprocessing() in src/acl.c that compares only trailing…

CVE-2026-125371

Tinyproxy through 1.11.3 contains an access control bypass vulnerability in aclstringprocessing() in src/acl.c that compares only trailing hostname characters without checking DNS label boundaries. Attackers controlling the PTR record for their source IP, such as untrusted.net, can satisfy an 'Allow trusted.net' entry to use the proxy despite deny-by-default ACLs.

Assessment

CVSS: 6.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 9 November 2026
Last updated: 9 November 2026
Affected: Tinyproxy · Tinyproxy
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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