Buffer overflow in Time Project
CVE-2026-25727
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (35.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Time Project
- Time-Rs Time — versions >= 0.3.6, < 0.3.47
Weakness classification (CWE)
References
- github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc (Vendor Advisory)
- github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee (Patch)
- github.com/time-rs/time/blob/main/CHANGELOG.md (Release Notes)
- github.com/time-rs/time/releases/tag/v0.3.47 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-25727?
- CVE-2026-25727 is a medium-severity vulnerability in Time Project, classified under Stack-based Buffer Overflow. CVSS score: 6.5/10. Published 2026-02-06.
- How severe is CVE-2026-25727?
- Medium severity. CVSS v3 base score is 6.5 out of 10.