CVE-2025-65637 Affecting aws-flb-firehose package, versions <1.7.2-r6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-AWSFLBFIREHOSE-14221994
- published8 Dec 2025
- disclosed4 Dec 2025
Introduced: 4 Dec 2025
NewCVE-2025-65637 (opens in a new tab)How to fix?
Upgrade Minimos:latest aws-flb-firehose to version 1.7.2-r6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream aws-flb-firehose package and not the aws-flb-firehose package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
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
- https://www.cve.org/CVERecord?id=CVE-2025-65637
- https://github.com/advisories/GHSA-4f99-4q7p-p3gh
- https://osv.dev/vulnerability/MINI-3q7x-p8pc-v6vc
- https://osv.dev/vulnerability/CVE-2025-65637
- https://github.com/mjuanxd/logrus-dos-poc
- https://github.com/mjuanxd/logrus-dos-poc/blob/main/README.md
- https://github.com/sirupsen/logrus/issues/1370
- https://github.com/sirupsen/logrus/pull/1376
- https://github.com/sirupsen/logrus/releases/tag/v1.8.3
- https://github.com/sirupsen/logrus/releases/tag/v1.9.1
- https://github.com/sirupsen/logrus/releases/tag/v1.9.3
- https://security.snyk.io/vuln/SNYK-GOLANG-GITHUBCOMSIRUPSENLOGRUS-5564391