CVE-2026-3945 Affecting tinyproxy package, versions *
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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- published4 Apr 2026
- disclosed30 Mar 2026
Introduced: 30 Mar 2026
CVE-2026-3945 (opens in a new tab)How to fix?
There is no fixed version for Debian:unstable tinyproxy.
NVD Description
Note: Versions mentioned in the description apply only to the upstream tinyproxy package and not the tinyproxy package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service (DoS). The issue occurs because chunk size values are parsed using strtol without properly validating overflow conditions (e.g., errno == ERANGE).
References
- https://security-tracker.debian.org/tracker/CVE-2026-3945
- https://github.com/tinyproxy/tinyproxy/commit/969852c
- https://github.com/tinyproxy/tinyproxy/commit/bb7edc4
- https://github.com/tinyproxy/tinyproxy/issues/602
- https://github.com/tinyproxy/tinyproxy/pull/603
- https://github.com/tinyproxy/tinyproxy/releases