No exploitation reportedFix available

CVE-2023-34396

Q: Is CVE-2023-34396 actively exploited?

Active exploitation of CVE-2023-34396 has not been confirmed. Its EPSS score was 5.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-34396?

CVE-2023-34396 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

No exploitation reported by the sources we read.

Published2023-06-14
Fixed in6.1.2.1 · 2.5.31
WeaknessCWE-770

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC

2023-06-1408:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-34396?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-34396?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Apache struts

Branch	Affected	Fixed in	Source
6.x	≥ 6.0.0, < 6.1.2.1	6.1.2.1	NVD
2.5	< 2.5.31	2.5.31	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache struts to 6.1.2.1 · 2.5.31

Advisories and patches

cwiki.apache.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-10-09
OpenCVESSVC decisionnone—
CNACVSS 3.14.3read 2026-10-23
NVDCVSS 3.17.5read 2026-10-23
CNAweakness (CWE)CWE-770read 2026-10-23
FIRST EPSSEPSS score5.5 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: 2023-06-14
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-34396?

Is CVE-2023-34396 actively exploited?

Active exploitation of CVE-2023-34396 has not been confirmed. Its EPSS score was 5.5% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-34396?

CVE-2023-34396 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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