CVE-2026-25727Network attack vector

Application crash via unbounded RFC 2822 recursion

Published Feb 6, 2026 · Updated Feb 6, 2026

Denial of service in the time crate 0.3.6 through 0.3.46 allows attackers to crash consuming applications via crafted RFC 2822 input. The RFC 2822 parser's comment routine recursively accepts nested obsolete comments without tracking depth, exhausting the call stack. Reachability requires an embedding application to pass attacker-controlled input to an affected parsing API with the RFC 2822 format.

CVSS severity6.8
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the time crate 0.3.6 through 0.3.46 allows attackers to crash consuming applications via crafted RFC 2822 input. The RFC 2822 parser's comment routine recursively accepts nested obsolete comments without tracking depth, exhausting the call stack. Reachability requires an embedding application to pass attacker-controlled input to an affected parsing API with the RFC 2822 format.

The record

CVE
CVE-2026-25727
Published
Feb 6, 2026
Updated
Feb 6, 2026
Vendor
Time
Product
time
Classifications
CWE-121, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.3.6, < 0.3.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Time · timeversion=>= 0.3.6, < 0.3.47

Published CVSS scores

6.8GitHub, Inc.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
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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