Regular expression denial of service in angular
Priority MEDIUM 63CWE-1333Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.
Summary
Versions of the package angular from 1.2.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the angular.copy() utility function due to the usage of an insecure regular expression. Exploiting this vulnerability is possible by a large carefully-crafted input, which can result in catastrophic backtracking.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01695 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | angular | 1.2.21 and later | — | No fix listed | CNA |
| — | org.webjars.bower:angular | 1.2.21 and later | — | No fix listed | CNA |
| — | org.webjars.npm:angular | 1.2.23 and later | — | No fix listed | CNA |
| — | org.webjars.bowergithub.angular:angular | all versions | — | No fix listed | CNA |
| — | angular (npm) | up to 1.8.3 | — | No fix listed | GHSA-2vrf-hf26-jrp5 |
- angular Vendor— Affected 1.2.21 and later Fixed in — No fix listed CNA
- org.webjars.bower:angular Vendor— Affected 1.2.21 and later Fixed in — No fix listed CNA
- org.webjars.npm:angular Vendor— Affected 1.2.23 and later Fixed in — No fix listed CNA
- org.webjars.bowergithub.angular:angular Vendor— Affected all versions Fixed in — No fix listed CNA
- angular (npm) Vendor— Affected up to 1.8.3 Fixed in — No fix listed GHSA-2vrf-hf26-jrp5
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* | 1.2.21 – 1.8.3 | Vulnerable | Angularjs |
| cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* | 38 | Vulnerable | Fedoraproject |
- cpe:2.3:a:angularjs:angularjs:*:*:*:*:*:*:*:* Versions 1.2.21 – 1.8.3 Vulnerable ·Angularjs
- cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:* Versions 38 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Service Mesh 2.1 | Affected | No fix planned: Will not fix |
| Red Hat Ceph Storage 3 | Affected | No fix planned: Out of support scope |
| Red Hat Ceph Storage 4 | Affected | No fix yet |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 9 | Affected | No fix planned: Will not fix |
| Red Hat Fuse 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Data Grid 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Out of support scope |
| Red Hat OpenStack Platform 16.1 | Affected | No fix planned: Will not fix |
| Red Hat Single Sign-On 7 | Affected | No fix planned: Will not fix |
| Red Hat Storage 3 | Affected | No fix planned: Will not fix |
Not affected: 8 products
- Red Hat Ansible Tower 3
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat JBoss Enterprise Application Platform 7
- Red Hat JBoss Enterprise Application Platform Expansion Pack
- Red Hat OpenStack Platform 16.2
- Red Hat Quay 3
Timeline
- 2026-10-02 Threatist record created from CVE-2023-26116
- 2026-10-03 Alias added: GHSA-2vrf-hf26-jrp5
References
Advisory 2
Other 5
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UDKFLKJ6VZKL52AFVW2OVZRMJWHMW55K/
- https://github.com/angular/angular.js
- https://lists.debian.org/debian-lts-announce/2025/07/msg00005.html
- https://lists.fedoraproject.org/archives/list/[email protected]/message/OQWJLE5WE33WNMA54XSJIDXBRK2KL3XJ
- https://lists.fedoraproject.org/archives/list/[email protected]/message/UDKFLKJ6VZKL52AFVW2OVZRMJWHMW55K
Sources
- CVE-2023-26116 · CVE Program
- CVE-2023-26116 · NVD
- FIRST EPSS
- GHSA-2vrf-hf26-jrp5 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-26116 · 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