Vulnerability Report

CVE-2026-25727

Title: DoS via stack exhaustion in time library (Rust)

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-25727.

CWE Category CWE-121

Published Date Feb 06, 2026

Modified Date Feb 24, 2026

Exploit Status Not Found

Score 6.8 CVSS v4.0

Exploit Probability (EPSS)

0.02%

Vulnerability Summary

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.

Impacted Vendors

time_project 1

Reference Links

https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05 https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee https://github.com/time-rs/time/releases/tag/v0.3.47 https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc

CVSS v4.0

Source Entity [email protected]

Severity MEDIUM

6.8

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

ACTIVE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

N/A

RAW VECTOR

CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.5

Attack Vector

NETWORK

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns