CVE-2026-116285 HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116285?
CVE-2026-116285 is a vulnerability, published on 28 Oct 2026.
Official description
HTTP::Body versions before 1.23_01 for Perl allow CPU exhaustion via quadratic regex backtracking when parsing chunked request bodies.
In chunked mode, used when no content length is given, add() matches each chunk-size line with `/^([\da-fA-F]+).*\x0D\x0A/`. On a line of hex digits whose first LF has no CR before it, the digits and `.*` backtrack against each other, so a single add() takes time quadratic in the line's length. Nothing limits how long the line can be.
A remote attacker can exhaust CPU in applications that pass chunked request bodies to HTTP::Body.
Weakness: CWE-1333
Which versions are affected by CVE-2026-116285?
How do I fix CVE-2026-116285?
No fix has been published for CVE-2026-116285 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116285 being exploited?
There is no known exploitation of CVE-2026-116285 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-116285, GHSA-q6fp-395r-83jv.