CVE-2026-64713: Qtwebkit opensource src · This issue was addressed with improved checks
Affects qtwebkit-opensource-srcSource GCVE Database
Not known to be exploited · CVSS 8.1 High · fixed in 2.52.6-0ubuntu0.24.04.1 : patch qtwebkit-opensource-src soon.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 40% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 2.52.6-0ubuntu0.24.04.1, 2.52.6-0ubuntu0.26.04.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 27 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 2.52.6-0ubuntu0.24.04.1 (package) or 2.52.6-0ubuntu0.26.04.1 (package).
Patches and advisories
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu 24.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 22.04 LTSqtwebkit-opensource-srcpkg:deb/ubuntu/qtwebkit-opensource-src?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSwebkit2gtkpkg:deb/ubuntu/webkit2gtk?arch=source&distro=jammyOther threats | Affected
| Fixed in– |
Ubuntu 22.04 LTSwpewebkitpkg:deb/ubuntu/wpewebkit?arch=source&distro=jammyOther threats | Affected
| 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 with improved checks. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Websites may know if the user has visited a given link.