Allocation of Resources Without Limits or Throttling Affecting thunderbird package, versions <0:140.7.1-1.amzn2.0.3


Severity

Recommended
low

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.29% (21st percentile)

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  • Snyk IDSNYK-AMZN2-THUNDERBIRD-15435836
  • published6 Mar 2026
  • disclosed6 Feb 2026

Introduced: 6 Feb 2026

CVE-2026-25727  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 thunderbird to version 0:140.7.1-1.amzn2.0.3 or higher.
This issue was patched in ALAS2-2026-3177.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

time provides date and time handling in Rust. From 0.3.6 to before 0.3.47, when user-provided input is provided to any type that parses with the RFC 2822 format, a denial of service attack via stack exhaustion is possible. The attack relies on formally deprecated and rarely-used features that are part of the RFC 2822 format used in a malicious manner. Ordinary, non-malicious input will never encounter this scenario. A limit to the depth of recursion was added in v0.3.47. From this version, an error will be returned rather than exhausting the stack.

CVSS Base Scores

version 3.1