Stack-based Buffer Overflow Affecting time-macros package, versions >=0.2.4 <0.2.27
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RUST-TIMEMACROS-15239583
- published6 Feb 2026
- disclosed5 Feb 2026
- creditMarek Kroemeke
Introduced: 5 Feb 2026
NewCVE-2026-25727 (opens in a new tab)How to fix?
Upgrade time-macros to version 0.2.27 or higher.
Overview
Affected versions of this package are vulnerable to Stack-based Buffer Overflow via the RFC 2822 parsing. An attacker can cause stack exhaustion by providing specially crafted input that exploits deprecated and rarely-used features of the RFC 2822 format.
Workaround
This vulnerability can be mitigated by limiting the length of user input, as the stack consumption is proportional to input length.
PoC
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.