CVE-2026-50645: apache software foundation apache cxf Uncontrolled Resource Consumption
Vulnerability summary
CVE-2026-50645 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in apache software foundation apache cxf. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 53.7% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 0 · Related 1Timeline
- 12-06-2026PublishedVulnerability first disclosed.
- 07-08-2026Last modifiedVulnerability information updated.
Description
There is no restriction on the amount of attachment headers that a message can contain when being deserialized by Apache CXF, which can lead to uncontrolled resource consumption or a denial of service attack. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fix this issue by imposing a maximum default of 500 attachments per message.
CVSS metrics
5 scores · 5 sources · 1 version- OSV · WolfiEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · ChainguardEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · MavenEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.74%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
+0.28 pp
From 0.46% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard12 products
- apache-tika-2.9< 2.9.4-r20
- apache-tika-3.0< 3.0.0-r31
- apache-tika-3.1< 3.1.0-r38
- apache-tika-3.2< 3.2.3-r18
- apache-tika-3.2-compat< 3.2.3-r18
Wolfi4 products
- apache-tika-3.1< 3.1.0-r38
- apache-tika-3.2< 3.2.3-r18
- apache-tika-3.2-compat< 3.2.3-r18
- apache-tika-3.3< 3.3.2-r2
Apache1 product
- cxf< 4.1.7 | ≥ 4.2.0, < 4.2.2
Apache software foundation1 product
- apache cxf≥ 4.2.0, < 4.2.2 | ≥ 4.0.0, < 4.1.7 | < 3.6.12
Org.apache.cxf1 product
- cxf-core≥ 4.2.0, < 4.2.2 | ≥ 4.0.0, < 4.1.7 | < 3.6.12
5 vendors · 19 products
References
7 links- github.com/apache/cxfPACKAGE