Regular expression denial of service in Liferay Portal
Priority LOW 35CWE-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 · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-1333.
Summary
Pattern Redirects in Liferay Portal 7.4.3.48 through 7.4.3.76, and Liferay DXP 7.4 update 48 through 76 allows regular expressions that are vulnerable to ReDoS attacks to be used as patterns, which allows remote attackers to consume an excessive amount of server resources via crafted request URLs.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00919 60th percentileScored 2026-11-07
Fix Fixed com.liferay.portal:release.portal.bom (Maven): 7.4.3.77
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Liferay | Portal | 7.4.3.48 – 7.4.3.76 | — | No fix listed | CNA |
| Liferay | DXP | 7.4.13.u48 – 7.4.13.u76 | — | No fix listed | CNA |
| — | com.liferay.portal:release.portal.bom (Maven) | 7.4.3.48 to before 7.4.3.77 | 7.4.3.77 | Patch available | GHSA-chrc-q6v3-jfv8 |
- Portal VendorLiferay Affected 7.4.3.48 – 7.4.3.76 Fixed in — No fix listed CNA
- DXP VendorLiferay Affected 7.4.13.u48 – 7.4.13.u76 Fixed in — No fix listed CNA
- com.liferay.portal:release.portal.bom (Maven) Vendor— Affected 7.4.3.48 to before 7.4.3.77 Fixed in 7.4.3.77 Patch available GHSA-chrc-q6v3-jfv8
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:liferay:digital_experience_platform:7.4:update48:*:*:*:*:*:* | 7.4 update48 | Vulnerable | Liferay |
| cpe:2.3:a:liferay:digital_experience_platform:7.4:update76:*:*:*:*:*:* | 7.4 update76 | Vulnerable | Liferay |
| cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:* | 7.4.3.48 – 7.4.3.76 | Vulnerable | Liferay |
- cpe:2.3:a:liferay:digital_experience_platform:7.4:update48:*:*:*:*:*:* Versions 7.4 update48 Vulnerable ·Liferay
- cpe:2.3:a:liferay:digital_experience_platform:7.4:update76:*:*:*:*:*:* Versions 7.4 update76 Vulnerable ·Liferay
- cpe:2.3:a:liferay:liferay_portal:*:*:*:*:*:*:*:* Versions 7.4.3.48 – 7.4.3.76 Vulnerable ·Liferay
Remediation
- Fix · GHSA-chrc-q6v3-jfv8 com.liferay.portal:release.portal.bom (Maven) Fixed in 7.4.3.77 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33950
- 2026-10-03 Alias added: GHSA-chrc-q6v3-jfv8
References
More Liferay Digital Experience Platform vulnerabilities
- TI-2023-22732 Cross-site scripting in Liferay DXP CVSS 3.1CRITICAL 9.6
- TI-2022-20403 A SQL injection vulnerability in the Layout module in Liferay Portal 7.1.3 through… CVSS 3.1HIGH 8.8
- TI-2025-03097 Uncontrolled resource consumption in Liferay Portal CVSS 4.0HIGH 8.7
- TI-2025-03169 Uncontrolled resource consumption in Liferay Portal CVSS 4.0HIGH 8.7
- TI-2024-17354 Cross-site scripting in Liferay Portal CVSS 3.1CRITICAL 9.6
- TI-2024-16598 Cross-site scripting in Liferay Portal CVSS 3.1CRITICAL 9.6
Sources
- CVE-2023-33950 · CVE Program
- CVE-2023-33950 · NVD
- FIRST EPSS
- GHSA-chrc-q6v3-jfv8 · GitHub Advisory Database · CC BY 4.0
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