Apache Struts: DoS via OOM owing to not properly checking of list bounds
Priority LOW 37CWE-770Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- 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-770.
Summary
Allocation of Resources Without Limits or Throttling vulnerability in Apache Software Foundation Apache Struts.This issue affects Apache Struts: through 2.5.30, through 6.1.2. Upgrade to Struts 2.5.31 or 6.1.2.1 or greater.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.05448 92nd percentileScored 2026-11-07
Fix Fixed org.apache.struts:struts2-core (Maven): 2.5.31, 6.1.2.1
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 |
|---|---|---|---|---|---|
| Apache | Apache Struts | up to 2.5.30; up to 6.1.2 | — | No fix listed | CNA |
| — | org.apache.struts:struts2-core (Maven) | before 2.5.31 | 2.5.31 | Patch available | GHSA-8f6x-v685-g2xc |
| — | org.apache.struts:struts2-core (Maven) | 6.0.0 to before 6.1.2.1 | 6.1.2.1 | Patch available | GHSA-8f6x-v685-g2xc |
- Apache Struts VendorApache Affected up to 2.5.30; up to 6.1.2 Fixed in — No fix listed CNA
- org.apache.struts:struts2-core (Maven) Vendor— Affected before 2.5.31 Fixed in 2.5.31 Patch available GHSA-8f6x-v685-g2xc
- org.apache.struts:struts2-core (Maven) Vendor— Affected 6.0.0 to before 6.1.2.1 Fixed in 6.1.2.1 Patch available GHSA-8f6x-v685-g2xc
Remediation
- Fix · GHSA-8f6x-v685-g2xc org.apache.struts:struts2-core (Maven) Fixed in 2.5.31 Advisory →
- Fix · GHSA-8f6x-v685-g2xc org.apache.struts:struts2-core (Maven) Fixed in 6.1.2.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2023-34149
- 2026-10-03 Alias added: GHSA-8f6x-v685-g2xc
References
Advisory 2
Other 7
- http://www.openwall.com/lists/oss-security/2023/06/14/2
- https://security.netapp.com/advisory/ntap-20230706-0005/
- https://github.com/apache/struts/commit/2d6f1bc0a6f5ac575a56784ac6461816b67c4f21
- https://github.com/apache/struts
- https://github.com/apache/struts/releases/tag/STRUTS_2_5_31
- https://github.com/apache/struts/releases/tag/STRUTS_6_1_2_1
- https://security.netapp.com/advisory/ntap-20230706-0005
More Apache Struts vulnerabilities
- TI-2020-13278 Expression language injection in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2017-07171 Improper input validation in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2017-03639 Improper handling of exceptional conditions in Apache Struts KEVCVSS 3.1CRITICAL 9.8
- TI-2013-02013 Apache Struts 2.0.0 through 2.3.15 allows remote attackers to execute arbitrary OGNL… KEVCVSS 3.1CRITICAL 9.8
- TI-2012-00357 The ExceptionDelegator component in Apache Struts before 2.2.3.1 interprets parameter… KEVCVSS 3.1CRITICAL 9.8
- TI-2018-08433 Improper input validation in Apache Struts KEVCVSS 3.1HIGH 8.1
Sources
- CVE-2023-34149 · CVE Program
- CVE-2023-34149 · NVD
- FIRST EPSS
- GHSA-8f6x-v685-g2xc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences