6.5

CVE-2026-25680: Invoking denial of service when parsing arbitrary HTML in golang.org/x/net/html

Analyzed
AliasesUBUNTU-CVE-2026-25680DEBIAN-CVE-2026-25680CGA-22gc-4gm8-vc6h
Published 22-05-2026Last modified 22-05-2026
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Vulnerability summary

CVE-2026-25680 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in golang net. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.33%
0%100%
Low · -0.13 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 43 · Related 44
OPENSUSE-SU-2026:10856-1OPENSUSE-SU-2026:10923-1OPENSUSE-SU-2026:10930-1OPENSUSE-SU-2026:10933-1OPENSUSE-SU-2026:10941-1OPENSUSE-SU-2026:10949-1

Timeline

  1. 22-05-2026
    PublishedVulnerability first disclosed.
  2. 22-05-2026
    Last modifiedVulnerability information updated.

Description

Parsing arbitrary HTML can consume excessive CPU time, possibly leading to denial of service.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

26%

Versus all other CVEs

30-day change

Decrease -0.13 pp

From 0.46% 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, user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard200 products
  • actions-runner-controllerAll versions (No fix recorded)
  • addon-resizerAll versions (No fix recorded)
  • addon-resizer-fipsAll versions (No fix recorded)
  • agentbeatAll versions (No fix recorded)
  • amassAll versions (No fix recorded)

1 vendor · 200 products · Showing 200 of 2251

References

14 links
Show all 14 references