Is CVE-2026-107705 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-107705 being exploited in the wild.

How severe is CVE-2026-107705?

Medium severity, with a CVSS score of 6.5, published 8 October 2026.

Which products and versions are affected?

Freedesktop Poppler 0.42.0 through 26.10.0.

Is there a fix for CVE-2026-107705?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-107705 attacked?

It is attacked over the network or with local access, in a software library.

Am I affected by CVE-2026-107705?

Check whether you run Freedesktop Poppler at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-107705: Poppler stack-based buffer overflow in Decrypt::revision6Hash()

CVE-2026-107705 · Severity: medium · CVSS 6.5 · Published 2026-10-08

Poppler is a PDF rendering library used by many applications to display and process PDF documents. A flaw in how it handles encrypted PDFs with long passwords allows an attacker to crash the application or potentially execute arbitrary code by supplying a specially crafted PDF with an oversized password when the file is opened.

Vendors: Freedesktop.

Quick answers

Is CVE-2026-107705 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-107705 being exploited in the wild.
How severe is CVE-2026-107705?: Medium severity, with a CVSS score of 6.5, published 8 October 2026.
Which products and versions are affected?: Freedesktop Poppler 0.42.0 through 26.10.0.
Is there a fix for CVE-2026-107705?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-107705 attacked?: It is attacked over the network or with local access, in a software library.
Am I affected by CVE-2026-107705?: Check whether you run Freedesktop Poppler at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow exists in the Decrypt::revision6Hash() function when processing AESV3/R6 encrypted PDFs. An attacker can provide a password longer than 127 bytes through the libpoppler, libpoppler-glib, or C++ API to overflow the K1 and E stack buffers. This requires an attacker to control the password input and the victim to open a malicious encrypted PDF, leading to process crash or memory corruption.

Affected products

Freedesktop Poppler 0.42.0 through 26.10.0

Timeline

2026-10-08: disclosed

References

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