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VulnerabilityPublished Updated

CVE-2026-116531: Libhttp body perl · HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in

Affects libhttp-body-perlSource GCVE Database

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Authoritative record:CVE-2026-116531· High

Not known to be exploited.

Data as of 5 Nov 2026, 12:35 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10libhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=stonkingOther threatsAffected
  • =1.23-1
Fixed in–
Ubuntu 26.04 LTSlibhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=resoluteOther threatsAffected
  • =1.23-1
Fixed in–
Ubuntu 24.04 LTSlibhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=nobleOther threatsAffected
  • =1.22-2
Fixed in–
Ubuntu 22.04 LTSlibhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=jammyOther threatsAffected
  • =1.22-1.1
Fixed in–
Ubuntu 20.04 LTSlibhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=focalOther threatsAffected
  • =1.22-1
Fixed in–
Ubuntu 18.04 LTSlibhttp-body-perlpkg:deb/ubuntu/libhttp-body-perl?arch=source&distro=bionicOther threatsAffected
  • =1.22-1
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

HTTP::Body versions before 1.23_01 for Perl lose track of chunk boundaries in chunked request bodies when a read ends inside a chunk. In chunked mode, used when no content length is given, add() treats a chunk as complete once the buffer is as long as the chunk's declared size, but the buffer still holds the chunk-size line. When a read ends in the last bytes of a chunk, add() takes the chunk short and parses the leftover data as the next chunk-size line. A remote attacker can make a chunked body never complete, hanging a server that reads until the body is done, and may make it complete early, leaving the remaining bytes to be read as the next request.

References

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