6.6

CVE-2026-45822: samverschueren decode-uri-component Uncontrolled Resource Consumption

Deferred
AliasesUBUNTU-CVE-2026-45822CGA-354f-3787-jjp7CGA-3667-g32g-gxgq
Published 30-06-2026Last modified 30-06-2026

Vulnerability summary

CVE-2026-45822 is a medium (CVSS 6.6) Uncontrolled Resource Consumption vulnerability in samverschueren decode-uri-component. EPSS estimates a 0.51% chance of exploitation in the next 30 days, higher than 43.3% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.6, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.6/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.51%
0%100%
Low · 0.00 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 0 · Related 1
CGA-8363-5X88-F6HM

Timeline

  1. 30-06-2026
    PublishedVulnerability first disclosed.
  2. 30-06-2026
    Last modifiedVulnerability information updated.

Description

decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.51%

Chance of exploitation in the next 30 days

Percentile

43%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.51% 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.

Chainguard64 products
  • commercial-gitlab-rails-ee-19.1< 19.1.7-r3
  • commercial-gitlab-rails-ee-19.2< 19.2.7-r1
  • commercial-gitlab-rails-ee-19.3< 19.3.3-r1
  • commercial-gitlab-rails-ee-fips-19.1All versions (No fix recorded) | < 19.1.9-r0
  • commercial-gitlab-rails-ee-fips-19.2< 19.2.7-r1
Wolfi10 products
  • kubeflow-pipelines-apiserver< 2.17.2-r4
  • kubeflow-pipelines-frontend< 2.17.2-r2
  • kubeflow-pipelines-metadata-writer-compat< 2.17.2-r4
  • nextcloud-server-32< 32.0.14-r4
  • nextcloud-server-33< 33.0.8-r3
Npm1 product
  • decode-uri-component< 0.5.0
Samverschueren1 product
Ubuntu1 product
  • node-source-map-resolveAll versions (No fix recorded)

5 vendors · 77 products

References

10 links