Hi,

The following vulnerability was published for poppler.

CVE-2026-93653[0]:
| A denial of service flaw was found in Poppler's Splash backend. A
| crafted PDF with tiling-pattern geometry approaching the int32
| boundary can cause SplashOutputDev::tilingPatternFill to compute an
| attacker-controlled repeat count that drives an excessively long
| loop in the pattern-fill scanline routine, without a corresponding
| memory allocation. An attacker could exploit this by supplying a
| malicious PDF to an application that renders it via Poppler's Splash
| backend, causing the rendering process to consume 100% CPU for an
| attacker-controlled, extended duration.

While checking I have not found a reported upstream issue, but might
have missed it so far the only reference was the Bugzilla entry from
Red Hat, [1].


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-93653
https://www.cve.org/CVERecord?id=CVE-2026-93653
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2537005

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore