CVE-2026-25727
time affected by a stack exhaustion denial of service attack
Description
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.
INFO
Published Date :
Feb. 6, 2026, 8:16 p.m.
Last Modified :
Feb. 24, 2026, 3:23 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update the time library to version 0.3.47 or later.
- Ensure user input is validated for RFC 2822 format.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25727.
| URL | Resource |
|---|---|
| https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05 | Release Notes |
| https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee | Patch |
| https://github.com/time-rs/time/releases/tag/v0.3.47 | Product Release Notes |
| https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25727 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25727
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25727 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-25727 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Feb. 24, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Added CPE Configuration OR *cpe:2.3:a:time_project:time:*:*:*:*:*:rust:*:* versions from (including) 0.3.6 up to (excluding) 0.3.47 Added Reference Type GitHub, Inc.: https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee Types: Patch Added Reference Type GitHub, Inc.: https://github.com/time-rs/time/releases/tag/v0.3.47 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc Types: Vendor Advisory -
New CVE Received by [email protected]
Feb. 06, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V4.0 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 Added CWE CWE-121 Added Reference https://github.com/time-rs/time/blob/main/CHANGELOG.md#0347-2026-02-05 Added Reference https://github.com/time-rs/time/commit/1c63dc7985b8fa26bd8c689423cc56b7a03841ee Added Reference https://github.com/time-rs/time/releases/tag/v0.3.47 Added Reference https://github.com/time-rs/time/security/advisories/GHSA-r6v5-fh4h-64xc