7.5

CVE-2025-61726: Memory exhaustion in query parameter parsing in net/url

Modified
AliasesRHSA-2026:10096RHSA-2026:3668RHSA-2026:3669
Published 28-01-2026Last modified 18-09-2026

Vulnerability summary

CVE-2025-61726 is a high (CVSS 7.5) vulnerability in go standard library net/url. EPSS estimates a 2.29% chance of exploitation in the next 30 days, higher than 83.2% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
2.29%
0%100%
Low · -0.03 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 166 · Related 166
MGASA-2026-0035OPENSUSE-SU-2026:10063-1OPENSUSE-SU-2026:10064-1OPENSUSE-SU-2026:20077-1OPENSUSE-SU-2026:20085-1OPENSUSE-SU-2026:20301-1

Showing 100 of 167.

Timeline

  1. 28-01-2026
    PublishedVulnerability first disclosed.
  2. 18-09-2026
    Last modifiedVulnerability information updated.

Description

The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encoded forms. Parsing a large form containing many unique query parameters can cause excessive memory consumption.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

2.29%

Chance of exploitation in the next 30 days

Percentile

83%

Versus all other CVEs

30-day change

Decrease -0.03 pp

From 2.33% 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

0 found

No public exploits indexed.

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.

Chainguard198 products
  • aactl< 0.4.12-r40
  • actions-runner-controller< 0.13.1-r1
  • actions-runner-controller-fips< 0.13.1-r1
  • ageAll versions (No fix recorded)
  • age-fipsAll versions (No fix recorded)
Alpine2 products
  • etcd< 3.6.8-r0
  • go≥ 1.25.0, < 1.24.12-r0 | ≥ 1.25.0, < 1.25.6-r0

2 vendors · 200 products · Showing 200 of 1970

References

307 links
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