CVE-2026-93312
poppler: Freedesktop Poppler: Denial of Service via null pointer dereference in JBIG2Stream::rewind function
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 18, 2026
Updated · September 24, 2026
Description
A flaw was found in Freedesktop Poppler. A remote attacker could exploit a null pointer dereference vulnerability in the JBIG2Stream::rewind function. This could lead to a denial of service (DoS), making the application unavailable to legitimate users.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Since Poppler is a library used by various applications to process PDF documents, a direct system-wide mitigation is not readily available. Users should exercise caution when opening untrusted PDF files. If possible, process untrusted PDF documents in a sandboxed environment to limit the potential impact of such vulnerabilities.
CVSS / CWE
CVSS 3.1 · 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE-476 · NULL Pointer Dereference