Bug 2548222 (CVE-2026-107705) - CVE-2026-107705 poppler: poppler: Denial of Service via stack-based buffer overflow in PDF decryption
Summary: CVE-2026-107705 poppler: poppler: Denial of Service via stack-based buffer ov...
Keywords:
Status: NEW
Alias: CVE-2026-107705
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2548445 2548446
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-08 20:01 UTC by OSIDB Bzimport
Modified: 2026-10-09 09:49 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-10-08 20:01:54 UTC 
Poppler 0.42.0 through 26.10.0 contains a stack-based buffer overflow in Decrypt::revision6Hash() that allows attackers controlling the password to overwrite stack memory when opening AESV3/R6 encrypted PDFs. Attackers can supply a password longer than 127 bytes through applications using the libpoppler, libpoppler-glib or C++ API to overflow the K1 and E buffers, crashing the process or corrupting memory.
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