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.
References
| Link | Resource |
|---|---|
| https://github.com/mjuanxd/logrus-dos-poc | Exploit Third Party Advisory |
| https://github.com/mjuanxd/logrus-dos-poc/blob/main/README.md | Exploit Third Party Advisory |
| https://github.com/sirupsen/logrus/issues/1370 | Exploit Issue Tracking Patch |
| https://github.com/sirupsen/logrus/pull/1376 | Issue Tracking Patch |
| https://github.com/sirupsen/logrus/releases/tag/v1.8.3 | Release Notes |
| https://github.com/sirupsen/logrus/releases/tag/v1.9.1 | Release Notes |
| https://github.com/sirupsen/logrus/releases/tag/v1.9.3 | Release Notes |
| https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSIRUPSENLOGRUS-5564391 | Exploit Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
23 Dec 2025, 00:26
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://github.com/mjuanxd/logrus-dos-poc - Exploit, Third Party Advisory | |
| References | () https://github.com/mjuanxd/logrus-dos-poc/blob/main/README.md - Exploit, Third Party Advisory | |
| References | () https://github.com/sirupsen/logrus/issues/1370 - Exploit, Issue Tracking, Patch | |
| References | () https://github.com/sirupsen/logrus/pull/1376 - Issue Tracking, Patch | |
| References | () https://github.com/sirupsen/logrus/releases/tag/v1.8.3 - Release Notes | |
| References | () https://github.com/sirupsen/logrus/releases/tag/v1.9.1 - Release Notes | |
| References | () https://github.com/sirupsen/logrus/releases/tag/v1.9.3 - Release Notes | |
| References | () 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 : v3 : |
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
