CVE-2026-123776: RRD-CGI-Image (Perl module) · Improper Validation of Specified Type of Input
Affects RRD-CGI-Image (Perl module)Source CVE Database V5
Not known to be exploited.
Data as of 7 Nov 2026, 12:17 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or noneExploitation evidence
Disclosed: evidence found.
CVE published 7 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| RRD-CGI-Image | Affected
| Fixed in– |
CPANRRD-CGI-Imagepkg:cpan/RRD-CGI-ImageOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should avoid exposing the vulnerable versions to untrusted input or implement input validation to restrict the 'tz' parameter to safe values. Monitor vendor advisories for any forthcoming fixes.
Description
RRD::CGI::Image versions up to 0.01 for Perl improperly validate the 'tz' CGI query parameter before passing it to the tzset() function. This allows an attacker to specify a FIFO or device path as the TZ environment variable, causing the process to block when tzset() attempts to open the path.