Skip to main content
CVE-2026-123776VulnerabilityPublished

RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting "tz" to tzset(), , so a FIFO or

Source GCVE Database

0
Compare
Authoritative record:CVE-2026-123776· Medium

Not known to be exploited.

Data as of 7 Nov 2026, 13:06 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD

Thin evidence

One scorer or none

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Nov 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 7 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
RRD-CGI-ImageAffected
  • <=0.01
Fixed in–
CPANRRD-CGI-Imagepkg:cpan/RRD-CGI-ImageOther threatsAffected
  • <=0.01
Fixed in–

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

AI-suggested

Until a fix is available, avoid exposing the vulnerable CGI interface to untrusted users or implement input validation to prevent TZ parameters from being set to paths that could block the process.

Description

RRD::CGI::Image versions through 0.01 for Perl improperly pass CGI query parameters containing "tz" to the tzset() function without validation. This allows an attacker to set the TZ environment variable to a value that glibc interprets as a file path, potentially causing the CGI process to block if the path points to a FIFO or device that stalls the process.

References

Community reviews

Loading reviews…