PatchTheCVECVE-2026-114629: Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded
CVE-2026-114629 is a high-severity flaw (CVSS n/a) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters. Web::Dispatch::ParamParser::get_unpacked_body_from reads an application/x-www-form-urlencoded body using a single read call, with no cap and the return value ignored. Perl's read grows the buffer to the requested length before reading, so the declared Content-Length determines the allocation. An attacker can trigger th
Why this priority
- No elevated risk signals yet
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | n/a (High) |
| EPSS exploit chance | n/a |
| CISA exploited list | No |
| Weakness | CWE-789 |
| Published | 2026-10-24 |
| Last modified | 2026-10-24 |
Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Timeline
- Published CVE record published
- Updated Record last modified
Advisories and coverage
Research and news
- oss-security list: CVE-2026-114629: Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body paramet 2026-10-24
- Vulners Bulletins: CVE-2026-114629 2026-10-24
- Vulners Bulletins: CVE-2026-114629 2026-10-24
- Vulners Bulletins: CVE-2026-114629 Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body paramete 2026-10-24
- Vulners Bulletins: CVE-2026-114629 2026-10-24
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-114629?
No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.
Is CVE-2026-114629 being exploited?
CVE-2026-114629 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-114629 affect?
CVE-2026-114629 affects affected software. Severity is high (CVSS n/a). Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters. Web::Dispatch::ParamParser::get_unpacked_body_from reads an application/x-www-form-urlencoded body using a sing
How urgent is CVE-2026-114629?
Priority 0/100. No elevated risk signals yet.