Joi before 17.13.7 and 18.2.6 ReDoS via isoDate
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 3 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-1333.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA joi (hapijs) Fixed in 17.13.7
- Fix · CNA joi (hapijs) Fixed in 18.2.6
Red Hat 6 advisories
- RHSA-2026:92510 Released 2026-10-29 · Red Hat rating CriticalRHOAI 3.4.6 - Red Hat OpenShift AI
- Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-cli-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +47
- RHSA-2026:87410 Released 2026-10-21 · Red Hat rating CriticalRHOAI 2.25.12 - Red Hat OpenShift AI
- Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-nlp-rhel9, registry.redhat.io/rhoai/odh-codeflare-operator-rhel9 +47
- RHSA-2026:85846 Released 2026-10-20 · Red Hat rating ImportantMigration Toolkit for Containers (MTC) 1.8.18 security and bug fix update
- Red Hat Migration Toolkit 1.8 registry.redhat.io/rhmtc/openshift-migration-controller-rhel8, registry.redhat.io/rhmtc/openshift-migration-registry-rhel8, registry.redhat.io/rhmtc/openshift-migration-ui-rhel8 +1
Show 3 more Red Hat advisories
- RHSA-2026:68926 Released 2026-09-18 · Red Hat rating ImportantRed Hat Hardened Images RPMs Security Update
- Red Hat Hardened Images grafana13.1-13.1.6-0.2.hum1@aarch64, grafana13.1-13.1.6-0.2.hum1@src, grafana13.1-13.1.6-0.2.hum1@x86_64
- RHSA-2026:68821 Released 2026-09-18 · Red Hat rating ImportantRed Hat Hardened Images RPMs Security Update
- Red Hat Hardened Images grafana12.4-12.4.10-0.6.hum1@aarch64, grafana12.4-12.4.10-0.6.hum1@src, grafana12.4-12.4.10-0.6.hum1@x86_64
- RHSA-2026:68778 Released 2026-09-17 · Red Hat rating ImportantRed Hat Hardened Images RPMs Security Update
- Red Hat Hardened Images grafana13.2-13.2.1-0.5.hum1@aarch64, grafana13.2-13.2.1-0.5.hum1@src, grafana13.2-13.2.1-0.5.hum1@x86_64
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Data Grid 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
| Red Hat Hardened Images | Fixed | RHSA-2026:68778, RHSA-2026:68821, RHSA-2026:68926 |
| Red Hat Migration Toolkit 1.8 | Fixed | RHSA-2026:85846 |
| Red Hat OpenShift AI 2.25 | Fixed | RHSA-2026:87410 |
| Red Hat OpenShift AI 3.4 | Fixed | RHSA-2026:92510 |
Not affected: 9 products
- Gatekeeper 3
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Migration Toolkit 1.8
- Red Hat OpenShift AI 2.25
- Red Hat OpenShift AI 3.4
- Red Hat OpenShift Container Platform 5
- Red Hat OpenShift Dev Spaces
Timeline
- 2026-10-02 Threatist record created from CVE-2026-92599
- 2026-10-03 Alias added: GHSA-mrx9-2rrp-rhpx
- 2026-10-20 Fix available: RHSA-2026:85846 · Red Hat
- 2026-10-20 Fix available: Red Hat Migration Toolkit 1.8 · Red Hat
- 2026-10-22 Fix available: RHSA-2026:87410 · Red Hat
- 2026-10-23 Fix available: Red Hat OpenShift AI 2.25 · Red Hat
- 2026-10-30 Fix available: RHSA-2026:92510 · Red Hat
- 2026-10-30 Fix available: Red Hat OpenShift AI 3.4 · Red Hat
- 2026-11-05 Affected versions changed · Red Hat
References
More hapijs vulnerabilities
- TI-2026-82752 Quadratic-time parsing in @hapi/content allows denial of service CVSS 3.1HIGH 7.5
- TI-2026-82716 Quadratic-time split in joi email rule allows denial of service CVSS 3.1HIGH 7.5
- TI-2026-61678 joi before 17.13.8 and 18.2.9 Prototype Pollution via messages CVSS 4.0MEDIUM 6.3
- TI-2018-02726 Prototype pollution in @hapi hoek node module CVSS 3.0HIGH 8.8
- TI-2026-79747 Regular expression denial of service in @hapi/content disposition parsing CVSS 4.0HIGH 8.7
- TI-2026-27366 Regular Expression Denial of Service (ReDoS) in @hapi/content HTTP header parsing CVSS 4.0HIGH 8.7
Sources
- CVE-2026-92599 · CVE Program
- CVE-2026-92599 · NVD
- FIRST EPSS
- GHSA-mrx9-2rrp-rhpx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-92599 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences