CVE catalog
CVE-2025-65637
golang-logrus: CVE-2025-65637
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.63% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | golang-logrus | sid | 1.9.3-2 | fixed |
| Debian | golang-logrus | forky | 1.9.3-2 | fixed |
| Debian | golang-logrus | trixie | 1.9.0-1 | vulnerable |
| Debian | golang-logrus | bookworm | 1.9.0-1 | vulnerable |
| Ubuntu | golang-logrus | 16.04 | 0.7.3-1 | vulnerable |
| Ubuntu | golang-logrus | 16.04 | 0.7.3-2 | vulnerable |
| Ubuntu | golang-logrus | 16.04 | 0.8.7-1 | vulnerable |
| Ubuntu | golang-logrus | 16.04 | 0.8.7-2 | vulnerable |
| Ubuntu | golang-logrus | 16.04 | 0.8.7-3 | vulnerable |
| Ubuntu | golang-logrus | 18.04 | 1.0.2-2 | vulnerable |
| Ubuntu | golang-logrus | 20.04 | 1.3.0-1 | vulnerable |
| Ubuntu | golang-logrus | 22.04 | 1.7.0-2 | vulnerable |
| Ubuntu | golang-logrus | 24.04 | 1.9.0-1 | vulnerable |
| Ubuntu | golang-logrus | 25.10 | 1.9.0-1 | vulnerable |
| Ubuntu | golang-logrus | 26.04 | 1.9.0-1 | vulnerable |
| Ubuntu | golang-logrus | 26.04 | 1.9.3-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | golang-logrus | source | sid | 1.9.3-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-logrus | source | forky | 1.9.3-1 | not yet assigned | Not reported | Not reported |
| Debian | golang-logrus | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | golang-logrus | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] golang-logrus: Minor issue [bookworm] golang-logrus: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [golang-github-sirupsen-logrus-dev]Affected
Source package: [golang-logrus]
Details (2)
1.9.0-1· all · bookwormAffected
dsa · golang-logrus · debian · bookworm; dsa · golang-logrus · debian · 12
1.9.0-1· all · bookwormAffected
dsa · golang-logrus · debian · bookworm; dsa · golang-logrus · debian · 12
[Debian 13 (Trixie)]
- [golang-github-sirupsen-logrus-dev]Affected
Source package: [golang-logrus]
Details (2)
1.9.0-1· all · trixieAffected
dsa · golang-logrus · debian · 13
1.9.0-1· all · trixieAffected
dsa · golang-logrus · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-65637]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-65637]
- [https://security-tracker.debian.org/tracker/CVE-2025-65637]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-65637.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0114.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]