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6 vulnerabilities found for Apache Commons BCEL by Apache Software Foundation
CVE-2026-94114 (GCVE-0-2026-94114)
Vulnerability from nvd – Published: 2026-10-06 19:42 – Updated: 2026-10-08 05:26
VLAI
EPSS
VEX
Title
Apache Commons BCEL: Class repositories cache class files under their self-declared names, enabling cache poisoning
Summary
Symbolic name not mapping to correct class.
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 BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:59 UTC
CWE
- CWE-386 - Symbolic name not mapping to correct object
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
0 , < 6.13.0
(maven)
Affected: 0 , < 14890bf2b9014df25f9b4de86f29b5e917e5656b (git) |
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CVE-2026-105111 (GCVE-0-2026-105111)
Vulnerability from nvd – Published: 2026-10-06 19:44 – Updated: 2026-10-07 06:11
VLAI
EPSS
VEX
Title
Apache Commons BCEL: Class2HTML emits unescaped class strings, enabling stored XSS
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL.
This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports).
This issue affects Apache Commons BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:58 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
0 , < 6.13.0
(maven)
Affected: 0 , < fb72c225cbc6ec3d94060ed6edb269f07428d504 (git) |
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CVE-2022-42920 (GCVE-0-2022-42920)
Vulnerability from nvd – Published: 2022-11-07 00:00 – Updated: 2024-08-03 13:19
VLAI
EPSS
VEX
Title
Apache Commons BCEL prior to 6.6.0 allows producing arbitrary bytecode via out-of-bounds writing
Summary
Apache Commons BCEL has a number of APIs that would normally only allow changing specific class characteristics. However, due to an out-of-bounds writing issue, these APIs can be used to produce arbitrary bytecode. This could be abused in applications that pass attacker-controllable data to those APIs, giving the attacker more control over the resulting bytecode than otherwise expected. Update to Apache Commons BCEL 6.6.0.
Severity
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/lfxk7q8qmnh5bt9jm… | |
| http://www.openwall.com/lists/oss-security/2022/11/07/2 | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202401-25 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
Apache Commons BCEL , < 6.6.0
(custom)
|
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CVE-2026-105111 (GCVE-0-2026-105111)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:44 – Updated: 2026-10-07 06:11
VLAI
EPSS
VEX
Title
Apache Commons BCEL: Class2HTML emits unescaped class strings, enabling stored XSS
Summary
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Apache Commons BCEL.
This only happens when you're using Class2HTML to generate webpages for possibly-attacker-controlled class files, where Class2HTML emitters write attacker class-file strings into HTML unescaped (stored XSS in reports).
This issue affects Apache Commons BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:58 UTC
CWE
- CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
0 , < 6.13.0
(maven)
Affected: 0 , < fb72c225cbc6ec3d94060ed6edb269f07428d504 (git) |
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CVE-2026-94114 (GCVE-0-2026-94114)
Vulnerability from cvelistv5 – Published: 2026-10-06 19:42 – Updated: 2026-10-08 05:26
VLAI
EPSS
VEX
Title
Apache Commons BCEL: Class repositories cache class files under their self-declared names, enabling cache poisoning
Summary
Symbolic name not mapping to correct class.
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 BCEL: before 6.13.0.
Users are recommended to upgrade to version 6.13.0, which fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 19:59 UTC
CWE
- CWE-386 - Symbolic name not mapping to correct object
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
0 , < 6.13.0
(maven)
Affected: 0 , < 14890bf2b9014df25f9b4de86f29b5e917e5656b (git) |
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CVE-2022-42920 (GCVE-0-2022-42920)
Vulnerability from cvelistv5 – Published: 2022-11-07 00:00 – Updated: 2024-08-03 13:19
VLAI
EPSS
VEX
Title
Apache Commons BCEL prior to 6.6.0 allows producing arbitrary bytecode via out-of-bounds writing
Summary
Apache Commons BCEL has a number of APIs that would normally only allow changing specific class characteristics. However, due to an out-of-bounds writing issue, these APIs can be used to produce arbitrary bytecode. This could be abused in applications that pass attacker-controllable data to those APIs, giving the attacker more control over the resulting bytecode than otherwise expected. Update to Apache Commons BCEL 6.6.0.
Severity
No CVSS data available.
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/lfxk7q8qmnh5bt9jm… | |
| http://www.openwall.com/lists/oss-security/2022/11/07/2 | mailing-list |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://security.gentoo.org/glsa/202401-25 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Commons BCEL |
Affected:
Apache Commons BCEL , < 6.6.0
(custom)
|
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