CVE-2023-41835 | Apache Struts: excessive disk usage

When a Multipart request is performed but some of the fields exceed the maxStringLength  limit, the upload files will remain in struts.multipart.saveDir  even if the request has been denied. Users are recommended to upgrade to versions Struts 2.5.32 or 6.1.2.2 or Struts 6.3.0.1 or greater, which fixe this issue.

Published: 2023-12-05 Last update: 2025-11-04 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-41835 is rated Moderate Risk (45.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.22%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-41835

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-12-24 0.29% 0.22% -0.07%
2 2025-11-21 1.70% 0.29% -1.40%
3 2025-11-18 — 1.70% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-41835

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 [email protected]
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2023-41835

GitHub Security Advisory for CVE-2023-41835

GHSA-729q-fcgp-r5xh · Severity: high · Ecosystem: maven — Apache Struts Improper Control of Dynamically-Managed Code Resources vulnerability

OS Trackers for CVE-2023-41835

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2023-41835
suse medium CVE-2023-41835 severity moderate: SUSE including 1 source package names (struts), 2 product×package rows across 2 product lines (SUSE Manager Server Module 4.2, SUSE Manager Server Module 4.3): Known Not Affected 2. https://www.suse.com/security/cve/CVE-2023-41835/
ubuntu medium CVE-2023-41835 medium priority: Ubuntu including 1 source packages (libstruts1.2-java), 8 status rows across 8 suites (bionic, focal, jammy, lunar, mantic, trusty, upstream, xenial): DNE 4, ignored 3, needs-triage 1. https://ubuntu.com/security/CVE-2023-41835

Affected software / configurations for CVE-2023-41835

Vendor Product Version Raw CPE
apache struts >= 2.0.0, < 2.5.32 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*
apache struts >= 6.1.2.1, < 6.3.0.1 cpe:2.3:a:apache:struts:*:*:*:*:*:*:*:*

References for CVE-2023-41835

cvelogic Threat Intelligence