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VulnerabilityPublished Updated

CVE-2026-20676: Qtwebkit opensource src · This issue was addressed through improved state management

Affects qtwebkit-opensource-srcSource GCVE Database

0
Authoritative record:CVE-2026-20676· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium · fixed in 2.52.3-0ubuntu0.24.04.1 : update qtwebkit-opensource-src when convenient.

Data as of 28 Oct 2026, 22:28 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.52.3-0ubuntu0.24.04.1, 2.52.3-0ubuntu0.25.10.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 11 Feb 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade the Ubuntu webkit2gtk to 2.52.3-0ubuntu0.24.04.1 (package) or 2.52.3-0ubuntu0.25.10.1 (package).

Affected software

ProductAffectedFixed in
Ubuntu 25.10webkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=questingOther threatsAffected
  • <2.52.3-0ubuntu0.25.10.1
Fixed in
  • 2.52.3-0ubuntu0.25.10.1
Ubuntu 24.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=nobleOther threatsAffected
  • 5.212.0~alpha4-33 – 5.212.0~alpha4-36
6 affected builds
Fixed in–
Ubuntu 24.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=nobleOther threatsAffected
  • <2.52.3-0ubuntu0.24.04.1
Fixed in
  • 2.52.3-0ubuntu0.24.04.1
Ubuntu 22.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=jammyOther threatsAffected
  • 5.212.0~alpha4-12 – 5.212.0~alpha4-15ubuntu1
6 affected builds
Fixed in–
Ubuntu 22.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=jammyOther threatsAffected
  • 2.34.0-1ubuntu1 – 2.50.4-0ubuntu0.22.04.1
42 affected builds
Fixed in–
Ubuntu 22.04 LTSwpewebkitpkg:deb/ubuntu/wpewebkit?arch=source&distro=jammyOther threatsAffected
  • 2.32.4-1 – 2.36.0-2ubuntu3
9 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.

References

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