CVE-2023-34396

Apache Struts: DoS via OOM owing to no sanity limit on normal form fields in multipart forms

HIGH

7.5

CVSS Score

Published: June 14, 2023 at 07:50 AM UTC

Updated: June 17, 2026 at 06:03 AM UTC

1 product affected across 1 vendorStruts

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Severity

HIGH7.5

Exploit prediction

EPSS 6%

SSVC

No known exploit

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Struts · Apachemaven

95%

v ≤ 2.5.30v ≤ 6.1.2v < 2.5.316.0.0 ≤ v < 6.1.2.1

Affected range stops below 2.5.31, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.1.2.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://cwiki.apache.org/confluence/display/WW/S2-064

References (3)

Mailing List

Source: [email protected]

http://www.openwall.com/lists/oss-security/2023/06/14/3

Vendor Advisory

Source: [email protected]

https://cwiki.apache.org/confluence/display/WW/S2-064

Source: [email protected]

https://security.netapp.com/advisory/ntap-20230706-0005/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: NONE
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-770

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