CVE-2026-43713: Qtwebkit opensource src · A permissions issue was addressed with additional restrictions
Affects qtwebkit-opensource-srcSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium · fixed in 2.52.6-0ubuntu0.24.04.1 : update qtwebkit-opensource-src when convenient.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% 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:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Jun 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
A permissions issue was addressed with additional restrictions. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Visiting a website may leak sensitive data.