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VulnerabilityPublished Updated

CVE-2026-82560: perl vulnerability

Affects perlSource GCVE Database

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Authoritative record:CVE-2026-82560· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in 5.18.2-2ubuntu1.7+esm10 : patch perl soon.

Data as of 11 Nov 2026, 14:18 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 5.18.2-2ubuntu1.7+esm10, 5.22.1-9ubuntu0.9+esm5, 5.26.1-6ubuntu0.7+esm5 +5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 19 Sep 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 11 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.10perlpkg:deb/ubuntu/perl?arch=source&distro=stonkingOther threatsAffected
  • <5.42.3-1ubuntu0.1
Fixed in
  • 5.42.3-1ubuntu0.1
Ubuntu 26.04 LTSperlpkg:deb/ubuntu/perl?arch=source&distro=resoluteOther threatsAffected
  • <5.40.1-7ubuntu0.4
Fixed in
  • 5.40.1-7ubuntu0.4
Ubuntu 24.04 LTSperlpkg:deb/ubuntu/perl?arch=source&distro=nobleOther threatsAffected
  • <5.38.2-3.2ubuntu0.7
Fixed in
  • 5.38.2-3.2ubuntu0.7
Ubuntu 22.04 LTSperlpkg:deb/ubuntu/perl?arch=source&distro=jammyOther threatsAffected
  • <5.34.0-3ubuntu1.10
Fixed in
  • 5.34.0-3ubuntu1.10
Ubuntu Pro 20.04 LTSperlpkg:deb/ubuntu/perl?arch=source&distro=esm-infra/focalOther threatsAffected
  • <5.30.0-9ubuntu0.5+esm5
Fixed in
  • 5.30.0-9ubuntu0.5+esm5
Ubuntu Pro 18.04 LTSperlpkg:deb/ubuntu/perl?arch=source&distro=esm-infra/bionicOther threatsAffected
  • <5.26.1-6ubuntu0.7+esm5
Fixed in
  • 5.26.1-6ubuntu0.7+esm5

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

AI-suggested

A patch is available and should be applied. Fixed versions include 5.18.2-2ubuntu1.7+esm10, 5.22.1-9ubuntu0.9+esm5, 5.26.1-6ubuntu0.7+esm5, 5.30.0-9ubuntu0.5+esm5, 5.34.0-3ubuntu1.10, 5.38.2-3.2ubuntu0.7, 5.40.1-7ubuntu0.4, and 5.42.3-1ubuntu0.1. Users should upgrade to these versions or later. Refer to the official Ubuntu security notice USN-9006-1 for details: https://ubuntu.com/security/notices/USN-9006-1

Description

A vulnerability in Perl's Pod::Text module allows improper handling of POD documents with deeply nested =over directives. This flaw can be exploited by processing a specially crafted file, potentially causing CPU and memory exhaustion and resulting in a denial of service condition.

References

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