Skip to main content
CVE-2026-113812VulnerabilityPublished

Biber: Mozilla::CA versions before 20261020 for Perl provide a CA certificate bundle containing a root linked to

Affects biberSource GCVE Database

0
Compare
Authoritative record:CVE-2026-113812· High

Not known to be exploited : upgrade to 2.22_1 soon.

Data as of 30 Oct 2026, 07:30 UTC

Severity
High

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in 2.22_1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 20 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 29 Oct 2026.

What to do

Upgrade biber to 2.22_1.

Affected software

ProductAffectedFixed in
Homebrewbiberpkg:brew/biberOther threatsAffected
  • >=2.16 <2.22_1
Fixed in
  • 2.22_1

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

Description

Mozilla::CA versions before 20261020 for Perl provide a CA certificate bundle containing a root linked to compromised intermediates. The bundle includes "emSign ECC Root CA - G3", which provides a trust path for intermediate certificates whose private keys are publicly available. An attacker able to intercept or redirect client traffic may use these keys to impersonate a TLS server. LWP, HTTP::Tiny and other clients normally use IO::Socket::SSL, which looks for CA certificates in OpenSSL's default locations before falling back to Mozilla::CA. Configuration and environment variables can override this selection. Users should check which CA store their client uses. If it uses the system store, check for and install the operating system vendor's updates for this incident.

References

Community reviews

Loading reviews…