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Vulnerabilities

Vulnerability · CVE-2026-114629

Web::Simple versions before 0.035 for Perl allocate a buffer sized by the Content-Length header for urlencoded body parameters

Published Oct 24, 2026 · catalog updated Oct 25, 2026 · Web::Simple versions before 0.035

Last checked Nov 6, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-114629. EPSS is 0.50%. Act only if a listed version of Web::Simple versions before 0.035 is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Web::Simple versions before 0.035).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Unknown—
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.50%
Remediation
Advisory link
Affected products
Debian:12 libweb-simple-perl · Debian:13 libweb-simple-perl · Debian:14 libweb-simple-perl

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 this through any route whose dispatch specification has a % body-parameter match, such as sub (POST + %name=), sending a Content-Length far larger than the body actually sent. No authentication is involved.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Debian:12 libweb-simple-perl0.033-2
  • Debian:12 libweb-simple-perl0.033-2, 0.035-1
  • Debian:13 libweb-simple-perl0.033-2
  • Debian:13 libweb-simple-perl0.033-2, 0.035-1
  • Debian:14 libweb-simple-perl0.033-2
  • Debian:14 libweb-simple-perl0.033-2, 0.035-1

How to fix CVE-2026-114629

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-114629. EPSS is 0.50%. Act only if a listed version of Web::Simple versions before 0.035 is installed.

Which versions are affected?

Compare what you have installed with 0.033-2, 0.033-2, 0.035-1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-789. EPSS 0.50%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Debian security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 24, 2026 · OpenCVE

    Detected

    CVE-2026-114629 is named on the public OpenCVE page.

  2. Oct 24, 2026 · Trivy Vulnerability DB

    Updated

    Research mention from Openwall OSS Security. This is not vendor confirmation or proof of exploitation. CVE-2026-114629 is named on the public Openwall OSS Security page.

  3. Oct 25, 2026 · Trivy Vulnerability DB

    Updated

    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 deter

Sources

  • CVE.orgVulnerability recordCVE-2026-114629

    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

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-114629

    30-day exploitation probability 0.50%

    first.org
  • OpenCVEVendor advisoryCVE-2026-114629

    CVE-2026-114629 is named on the public OpenCVE page.

    opencve.io
  • Openwall OSS SecurityThreat researchCVE-2026-114629

    Research mention from Openwall OSS Security. Not confirmation of exploitation.

    openwall.com
  • OpenSSF OSV / OSV ScannerPackage advisoryDEBIAN-CVE-2026-114629
    osv.dev
  • Trivy Vulnerability DBPackage advisoryDEBIAN-CVE-2026-114629

    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

    osv.dev

References

Freshness

Last verified in this catalog Nov 6, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 6, 2026
  • Openwall OSS SecurityOct 29, 2026
  • OpenSSF OSV / OSV ScannerOct 25, 2026
  • CVE.orgOct 25, 2026
  • Trivy Vulnerability DBOct 25, 2026
  • OpenCVEOct 24, 2026