8.7

CVE-2026-92599: hapijs joi

CVSS: 8.7v4.0HighAwaiting analysis
AliasesCGA-2pj9-h4hm-4x3gCGA-w5hg-p9jr-rp7hGHSA-6h2x-m376-mqjq
Published 16-09-2026Last modified 18-09-2026
Open JSON

Vulnerability summary

CVE-2026-92599 is a high (CVSS 8.7) vulnerability in hapijs joi. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 46.7% of scored vulnerabilities.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.7/10
010
High · v4.0 (CVE.org)
EPSS score
0.58%
0%100%
Low · +0.24 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 1 · Downstream 3
GHSA-MRX9-2RRP-RHPXRHSA-2026:68778RHSA-2026:68821RHSA-2026:68926

Timeline

  1. 16-09-2026
    PublishedVulnerability first disclosed.
  2. 18-09-2026
    Last modifiedVulnerability information updated.

Description

joi (npm package `joi`, hapi.js) versions >=17.2.0 <17.13.7 and >=18.0.0 <18.2.6 are vulnerable to regular expression denial of service in the `Joi.string().isoDate()` validation rule. One of the regular expressions the rule applies to the input is unanchored, so a valid ISO date followed by a long run of fractional-second digits causes the regex engine to restart its search from every position in the string, yielding time proportional to the square of the input length (about 1.4 s for 64 KB of digits and about 22 s for 256 KB). A remote attacker who can supply a string to an isoDate validation can stall the application with a single request. Fixed in 17.13.7 and 18.2.6; as a workaround, cap the length of the string before it reaches joi.

CVSS metrics

8 scores · 5 sources · 2 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.24 pp

From 0.34% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.58%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard13 products
  • gitlab-rails-ce-18.10All versions (No fix recorded)
  • gitlab-rails-ce-18.8All versions (No fix recorded)
  • gitlab-rails-ce-18.9All versions (No fix recorded)
  • gitlab-rails-ce-fips-18.10< 18.10.8-r8
  • gitlab-rails-ce-fips-18.8All versions (No fix recorded)
Wolfi2 products
  • opensearch-dashboards-3< 3.8.0-r7
  • thingsboard-tb-js-executorAll versions (No fix recorded) | < 4.4-r3
Hapijs1 product
  • joi≥ 17.2.0, < 17.13.7 | ≥ 18.0.0, < 18.2.6
Npm1 product
  • joi≥ 17.2.0, < 17.13.7 | ≥ 18.0.0, < 18.2.6

4 vendors · 17 products

References

9 links