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6.5 Medium

CVE-2025-1934 It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering…

Description

It was possible to interrupt the processing of a RegExp bailout and run additional JavaScript, potentially triggering garbage collection when the engine was not expecting it. This vulnerability was fixed in Firefox 136, Firefox ESR 128.8, Thunderbird 136, and Thunderbird 128.8.

Affected products and versions

Product Affected versions Fixed in
Firefox 136 earliest → < 136 136
Firefox 128.8 earliest → < 128.8 128.8
Firefox ESR 128.8 earliest → < 128.8 128.8
Thunderbird 136 earliest → < 136 136
Thunderbird 128.8 earliest → < 128.8 128.8

References

Timeline

  1. Published
  2. Last modified

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CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118025 Other issue in the SVG component 8.8 High CVE-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High
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