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Apache Commons BCEL CVE-2026-94114

| EUVDEUVD-2026-93970 HIGH
Symbolic Name not Mapping to Correct Object (CWE-386)
2026-10-06 security@apache.org GHSA-2p8h-ph4h-rm2f
Apache Java Information Disclosure
8.2
CVSS 4.0 · Vendor: apache
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Severity by source

Vendor (apache) PRIMARY
8.2 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
5.9 MEDIUM

Attacker-supplied class is network-deliverable with no auth or interaction, but needs a specific name-collision/lookup sequence (AC:H); only class-identity integrity is affected, so I:H with C:N/A:N.

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
SUSE
5.9 MEDIUM
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Red Hat
5.9 MEDIUM
qualitative

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
Patch available
Oct 06, 2026 - 21:05 EUVD
Metadata Corrected
Oct 06, 2026 - 20:40 vuln.today
tag: Java added
Analysis Generated
Oct 06, 2026 - 20:36 vuln.today
CVE Published
Oct 06, 2026 - 20:17 cve.org
HIGH 8.2

DescriptionCVE.org

Symbolic name not mapping to correct object vulnerability in Apache Commons.

BCEL caches attacker-controlled classes under their self-declared names without validating the requested name, allowing subsequent lookups and name-keyed verification results to refer to a different class.

This issue affects Apache Commons: before 6.13.0.

Users are recommended to upgrade to version 6.13.0, which fixes the issue.

Articles & Coverage 1

News 3 New Java Vulnerabilities - 3 High Severity Oct 07, 2026

AnalysisAI

Apache Commons BCEL before 6.13.0 caches attacker-supplied class files under the symbolic name declared inside the class file itself rather than validating that name against the name it was requested under, so a class loaded via AbstractClassPathRepository or ClassLoaderRepository can poison a repository entry keyed to a different, colliding name. Applications that load class files from an attacker-influenceable classpath or input stream and later rely on the repository's name-keyed lookups or verification results can be induced to operate on the wrong class, producing an integrity-only impact (no confidentiality or availability effect). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Requires an application that uses Apache Commons BCEL's repository classes (AbstractClassPathRepository or ClassLoaderRepository, below 6.13.0) to load class files from a classpath or input stream that an attacker can influence, and that subsequently relies on name-keyed lookups or verification results from that repository. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The vendor CVSS 4.0 base score of 8.2 (High) is driven entirely by integrity impact (VI:H) with VC:N and VA:N, i.e. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade Apache Commons BCEL to version 6.13.0, which is the vendor-released fix for this issue; the correction is implemented in the upstream commit https://github.com/apache/commons-bcel/commit/14890bf2b9014df25f9b4de86f29b5e917e5656b.patch, and the release is announced at https://lists.apache.org/thread.html/d87nxx7nb5bombqggxhxo9lz16nwtsf9. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours, inventory all applications using Apache Commons BCEL versions before 6.13.0 and identify those that load class files from untrusted or attacker-influenceable classpaths or input streams; implement immediate compensating controls such as restricting class loading to trusted sources and adding validation of declared class names against requested names before caching. …

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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Affected
SUSE Linux Enterprise High Performance Computing 12 Affected
SUSE Linux Enterprise Module for Basesystem 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Server 16.0 Affected

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CVE-2026-94114 vulnerability details – vuln.today
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