CVE-2025-65637

A denial-of-service vulnerability exists in github.com/sirupsen/logrus when using Entry.Writer() to log a single-line payload larger than 64KB without newline characters. Due to limitations in the internal bufio.Scanner, the read fails with "token too long" and the writer pipe is closed, leaving Writer() unusable and causing application unavailability (DoS). This affects versions < 1.8.3, 1.9.0, and 1.9.2. The issue is fixed in 1.8.3, 1.9.1, and 1.9.3+, where the input is chunked and the writer continues to function even if an error is logged.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:turbopuffer:logrus:*:*:*:*:*:go:*:*
cpe:2.3:a:turbopuffer:logrus:1.9.0:*:*:*:*:go:*:*
cpe:2.3:a:turbopuffer:logrus:1.9.2:*:*:*:*:go:*:*

History

23 Dec 2025, 00:26

Type Values Removed Values Added
References () https://github.com/mjuanxd/logrus-dos-poc - () https://github.com/mjuanxd/logrus-dos-poc - Exploit, Third Party Advisory
References () https://github.com/mjuanxd/logrus-dos-poc/blob/main/README.md - () https://github.com/mjuanxd/logrus-dos-poc/blob/main/README.md - Exploit, Third Party Advisory
References () https://github.com/sirupsen/logrus/issues/1370 - () https://github.com/sirupsen/logrus/issues/1370 - Exploit, Issue Tracking, Patch
References () https://github.com/sirupsen/logrus/pull/1376 - () https://github.com/sirupsen/logrus/pull/1376 - Issue Tracking, Patch
References () https://github.com/sirupsen/logrus/releases/tag/v1.8.3 - () https://github.com/sirupsen/logrus/releases/tag/v1.8.3 - Release Notes
References () https://github.com/sirupsen/logrus/releases/tag/v1.9.1 - () https://github.com/sirupsen/logrus/releases/tag/v1.9.1 - Release Notes
References () https://github.com/sirupsen/logrus/releases/tag/v1.9.3 - () https://github.com/sirupsen/logrus/releases/tag/v1.9.3 - Release Notes
References () https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSIRUPSENLOGRUS-5564391 - () https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSIRUPSENLOGRUS-5564391 - Exploit, Third Party Advisory
CPE cpe:2.3:a:turbopuffer:logrus:1.9.0:*:*:*:*:go:*:*
cpe:2.3:a:turbopuffer:logrus:*:*:*:*:*:go:*:*
cpe:2.3:a:turbopuffer:logrus:1.9.2:*:*:*:*:go:*:*
First Time Turbopuffer logrus
Turbopuffer

05 Dec 2025, 22:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CWE CWE-400

04 Dec 2025, 19:16

Type Values Removed Values Added
New CVE

Information

Published : 2025-12-04 19:16

Updated : 2025-12-23 00:26


NVD link : CVE-2025-65637

Mitre link : CVE-2025-65637

CVE.ORG link : CVE-2025-65637


JSON object : View

Products Affected

turbopuffer

  • logrus
CWE
CWE-400

Uncontrolled Resource Consumption