OESA-2026-3196

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3196
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3196.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3196
Upstream
  • CVE-2026-14899
  • CVE-2026-15718
  • CVE-2026-15719
  • CVE-2026-16349
  • CVE-2026-16350
  • CVE-2026-16351
  • CVE-2026-16352
  • CVE-2026-16353
  • CVE-2026-16354
  • CVE-2026-16355
  • CVE-2026-16356
  • CVE-2026-16357
  • CVE-2026-16358
  • CVE-2026-16359
  • CVE-2026-16360
  • CVE-2026-16361
  • CVE-2026-16362
  • CVE-2026-16363
  • CVE-2026-16368
  • CVE-2026-16369
  • CVE-2026-16371
  • CVE-2026-16374
  • CVE-2026-16375
  • CVE-2026-16377
  • CVE-2026-16379
  • CVE-2026-16381
  • CVE-2026-16383
  • CVE-2026-16387
  • CVE-2026-16390
  • CVE-2026-16391
  • CVE-2026-16396
  • CVE-2026-16405
  • CVE-2026-16412
Published
2026-08-01T16:42:23Z
Modified
2026-07-31T16:45:09.985761348Z
Summary
thunderbird security update
Details

Mozilla Thunderbird is a standalone mail and newsgroup client.

Security Fix(es):

The code to parse MIME headers for display when forwarding a message (if the setting to view all headers was enabled) had an off-by-one error, allowing a single byte to be read from the memory after the buffer for the headers, and potentially crashing Thunderbird. This vulnerability was fixed in Thunderbird 153 and Thunderbird 140.13.(CVE-2026-14899)

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 140.13, and Thunderbird 140.13.(CVE-2026-15718)

We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.(CVE-2026-15719)

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16349)

Incorrect boundary conditions in the Audio/Video: cubeb component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16350)

Sandbox escape due to use-after-free in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16351)

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16352)

Invalid pointer in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16353)

Information disclosure in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16354)

JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16355)

Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16356)

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16357)

Site isolation issue in the Graphics: WebRender component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16358)

Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16359)

Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16360)

Memory safety bugs present in Thunderbird ESR 140.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.(CVE-2026-16361)

Use-after-free in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16362)

JIT miscompilation in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16363)

Incorrect boundary conditions in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16368)

Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16369)

Privilege escalation in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16371)

Information disclosure in the Framework component in DevTools. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16374)

Site isolation issue in the Networking: HTTP component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16375)

Mitigation bypass in the PDF Viewer component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16377)

Privilege escalation in the DOM: Content Processes component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16379)

Same-origin policy bypass in the Networking: DNS component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16381)

Mitigation bypass in the DOM: Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16383)

Site isolation issue in the Networking component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16387)

Mitigation bypass in the Enterprise Policies component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16390)

Information disclosure in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16391)

Privilege escalation in WebExtensions. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16396)

Information disclosure in the Networking: WebSockets component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16405)

Memory safety bugs present in Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.(CVE-2026-16412)

Database specific 
{
    "severity": "Critical"
}
References

Affected packages

openEuler:24.03-LTS-SP3 / thunderbird

Package

Name
thunderbird
Purl
pkg:rpm/openEuler/thunderbird&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
140.13.0-1.oe2403sp3

Ecosystem specific 

{
    "src": [
        "thunderbird-140.13.0-1.oe2403sp3.src.rpm"
    ],
    "aarch64": [
        "thunderbird-140.13.0-1.oe2403sp3.aarch64.rpm",
        "thunderbird-debuginfo-140.13.0-1.oe2403sp3.aarch64.rpm",
        "thunderbird-debugsource-140.13.0-1.oe2403sp3.aarch64.rpm",
        "thunderbird-librnp-rnp-140.13.0-1.oe2403sp3.aarch64.rpm",
        "thunderbird-wayland-140.13.0-1.oe2403sp3.aarch64.rpm"
    ],
    "x86_64": [
        "thunderbird-140.13.0-1.oe2403sp3.x86_64.rpm",
        "thunderbird-debuginfo-140.13.0-1.oe2403sp3.x86_64.rpm",
        "thunderbird-debugsource-140.13.0-1.oe2403sp3.x86_64.rpm",
        "thunderbird-librnp-rnp-140.13.0-1.oe2403sp3.x86_64.rpm",
        "thunderbird-wayland-140.13.0-1.oe2403sp3.x86_64.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3196.json"