CLSA-2026-1783517292

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1783517292.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1783517292
Upstream
CVE (3)
Published
2026-07-08T13:28:31Z
Modified
2026-10-26T09:43:14Z
Summary
thunderbird: Fix of 3 CVEs
Details
  • CVE-2026-2770: keep construction depth for custom elements in sync; wrap AutoConstructionDepth in mozilla::Maybe so early throws in HTMLConstructor still tear it down deterministically (Bug 2014585)
  • CVE-2026-2763: use-after-free in SuppressDeletedProperty during property iteration; replace GetPrototype + GetPropertyDescriptor (both CanGC/re-entrant) with staticPrototype() + LookupPropertyPure()
    • GetPropertyAttributes() in js/src/vm/Iteration.cpp (Bug 2012018)
  • CVE-2026-2764: JIT baseline CacheIR call-scripted stub could observe a not-yet-created this if it OOM'd between reservation and construction; create this after pushing arguments and thread the argument through pushArguments/CreateThis paths (Bug 2012608)
References

Affected packages

TuxCare:AlmaLinux:9.2 / thunderbird

Package

Name
thunderbird
Purl
pkg:rpm/tuxcare/thunderbird?distro=almalinux-9.2

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
115.4.1-1.el9_2.alma.tuxcare.els18

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1783517292.json"