CVE-2026-116267 MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message.
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-116267?
CVE-2026-116267 is a vulnerability, published on 28 Oct 2026.
Official description
MIME::Parser versions before 5.521 for Perl allow memory exhaustion via indented error messages from a truncated, deeply nested message.
Each stored parser diagnostic is indented by three spaces per nesting level. When a message nested N levels deep ends without its closing boundaries, every level logs an error at its own depth, so the stored diagnostics grow with the square of N. The defaults place no limit on nesting depth.
Weakness: CWE-407
Which versions are affected by CVE-2026-116267?
How do I fix CVE-2026-116267?
No fix has been published for CVE-2026-116267 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-116267 being exploited?
There is no known exploitation of CVE-2026-116267 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-116267, GHSA-4hx4-q2mp-7h24, UBUNTU-CVE-2026-116267.