RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting "tz" to tzset(), , so a FIFO or device path blocks the CGI process
Summary
| CVE | CVE-2026-123776 |
|---|---|
| State | PUBLISHED |
| Assigner | CPANSec |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-11-07 12:17:46 UTC |
| Updated | 2026-11-07 12:17:46 UTC |
| Description | RRD::CGI::Image versions through 0.01 for Perl pass CGI query parameters containting "tz" to tzset(), , so a FIFO or device path blocks the CGI process. The normalize_params method sends any query key matching /tz/i to tz(), which sets $ENV{TZ} to that value, with no validation. It then calls tzset(). glibc treats a TZ value starting with / or : as a file path and opens it, so a value naming a FIFO or a blocking device stalls the process inside tzset(). |
Risk And Classification
Problem Types: CWE-1287 | CWE-1287 CWE-1287 Improper Validation of Specified Type of Input
There are no known software configurations currently associated with this CVE in NVD or the CVE Program record.
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| rt.cpan.org/Ticket/Display.html | 9b29abf9-4ab0-4765-b253-1875cd9b441e | rt.cpan.org | |
| security.metacpan.org/patches/R/RRD-CGI-Image/0.01/CVE-2026-123776-r1.patch | 9b29abf9-4ab0-4765-b253-1875cd9b441e | security.metacpan.org | |
| man7.org/linux/man-pages/man3/tzset.3.html | 9b29abf9-4ab0-4765-b253-1875cd9b441e | man7.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Solutions
CNA: Apply the patch.
There are currently no legacy QID mappings associated with this CVE.