CVE-2025-65637
Dec. 4, 2025, 7:16 p.m.
None
No Score
Description
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.
Product(s) Impacted
| Vendor | Product | Versions |
|---|---|---|
| Sirupsen |
|
|
Weaknesses
Common security weaknesses mapped to this vulnerability.
*CPE(s)
Affected systems and software identified for this CVE.
| Type | Vendor | Product | Version | Update | Edition | Language | Software Edition | Target Software | Target Hardware | Other Information |
|---|---|---|---|---|---|---|---|---|---|---|
| a | sirupsen | logrus | <1.8.3 | / | / | / | / | / | / | / |
| a | sirupsen | logrus | 1.9.0 | / | / | / | / | / | / | / |
| a | sirupsen | logrus | 1.9.2 | / | / | / | / | / | / | / |
| a | sirupsen | logrus | 1.9.1 | / | / | / | / | / | / | / |
| a | sirupsen | logrus | 1.9.3 | / | / | / | / | / | / | / |
References
Tags
Timeline
Published: Dec. 4, 2025, 7:16 p.m.
Last Modified: Dec. 4, 2025, 7:16 p.m.
Last Modified: Dec. 4, 2025, 7:16 p.m.
Status : Received
CVE has been recently published to the CVE List and has been received by the NVD.
More infoSource
cve@mitre.org
*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.