CVE-2026-93018 Affecting libimager-perl package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published19 Sept 2026
- disclosed18 Sept 2026
Introduced: 18 Sep 2026
NewCVE-2026-93018 (opens in a new tab)How to fix?
There is no fixed version for Echo:latest libimager-perl.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libimager-perl package and not the libimager-perl package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
Imager versions before 1.036 for Perl disclose uninitialised heap memory reading a paletted image with pixel indexes past its colour map in i_gpix_p and i_glin_p.
The palette is allocated uninitialised, and only the entries a reader adds count as populated. The TGA reader stores pixel indexes without checking them against the colour map. i_gpix_p() rejects only an index greater than the count, so an index equal to it reads the first unpopulated entry, and getpixel() returns it.
i_glin_p() skips any index at or beyond the count without writing that pixel to the caller's buffer. The palette-to-RGB conversion reads each row through an uninitialised buffer, so those pixels of the converted image hold prior heap contents.
Reading an attacker-supplied image through Imager->read() and then fetching its pixels or converting it to RGB discloses process heap memory.
References
- https://advisory.echohq.com/cve/CVE-2026-93018
- https://github.com/tonycoz/imager/commit/dcf0a52e2732399d42ab44d98af6934658d068ee.patch
- https://github.com/tonycoz/imager/security/advisories/GHSA-j7v7-cm4g-vrgf
- https://metacpan.org/release/TONYC/Imager-1.036/changes
- http://www.openwall.com/lists/oss-security/2026/09/18/8