7.5

CVE-2025-65637: turbopuffer logrus Uncontrolled Resource Consumption

Analyzed
AliasesRHSA-2026:11804RHSA-2026:12273RHSA-2026:13971
Published 04-12-2025Last modified 05-12-2025

Vulnerability summary

CVE-2025-65637 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in turbopuffer logrus. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 50.2% of scored vulnerabilities. 3 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.63%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits3github, reference

Advisory lineage

Upstream 0 · Downstream 15 · Related 16

Timeline

  1. 04-12-2025
    PublishedVulnerability first disclosed.
  2. 05-12-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

8 scores · 8 sources · 2 versions

EPSS trend

Probability

0.63%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.63% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

3 found
  • githubUnverified

    Logrus Dos Poc

    Maturity: poc

  • githubUnverified

    Logrus

    Maturity: poc

  • referenceUnverified

    Exploit Reference (security.snyk.io)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard77 products
  • aws-flb-cloudwatch< 1.9.4-r22
  • aws-flb-cloudwatch-compat< 1.9.4-r22
  • aws-flb-cloudwatch-compat-fips< 1.9.4-r16
  • aws-flb-cloudwatch-fips< 1.9.4-r16
  • aws-flb-firehose< 1.7.2-r22
Redhat36 products
  • microshift< 0:4.17.49-202602161401.p0.g708a69a.assembly.4.17.49.el9 | < 0:4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9
  • microshift-greenboot< 0:4.17.49-202602161401.p0.g708a69a.assembly.4.17.49.el9 | < 0:4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9
  • microshift-low-latency< 0:4.17.49-202602161401.p0.g708a69a.assembly.4.17.49.el9
  • microshift-multus< 0:4.17.49-202602161401.p0.g708a69a.assembly.4.17.49.el9 | < 0:4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9
  • microshift-multus-release-info< 0:4.17.49-202602161401.p0.g708a69a.assembly.4.17.49.el9 | < 0:4.16.58-202603160404.p0.gb9661ec.assembly.4.16.58.el9
Wolfi27 products
  • aws-flb-cloudwatch< 1.9.4-r22
  • aws-flb-cloudwatch-compat< 1.9.4-r22
  • aws-flb-firehose< 1.7.2-r22
  • aws-flb-firehose-compat< 1.7.2-r22
  • aws-flb-kinesis< 1.10.3-r3
Debian1 product
  • golang-logrusAll versions (No fix recorded) | < 1.9.3-1
Github.com/sirupsen1 product
  • logrus< 1.8.3 | ≥ 1.9.0, < 1.9.1 | ≥ 1.9.2, < 1.9.3
Turbopuffer1 product
Ubuntu1 product
  • golang-logrusAll versions (No fix recorded)

7 vendors · 144 products

References

54 links
Show all 54 references