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CVE-2026-42253

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache ActiveMQ, Apache ActiveMQ Web. The MessageServlet in the ActiveMQ web console API copies every JMS message property into an HTTP response header without any validation. This can allow overwriting and injecting security headers by setting them on JMS messages that are returned by the servlet. This issue affects Apache ActiveMQ: before 5.19.7, from 6.0.0 before 6.2.6; Apache ActiveMQ Web:
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d23b676de5dac0917b4043a0f8269269d2e05ee61aaa5096c212c62f0439d179
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.activemq:apache-activemq","product":"Apache ActiveMQ","vendor":"Apache Software Foundation","versions":[{"lessThan":"5.19.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.2.6","status":"affected","version":"6.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/affected/0

{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.activemq:activemq-web","product":"Apache ActiveMQ Web","vendor":"Apache Software Foundation","versions":[{"lessThan":"5.19.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.2.6","status":"affected","version":"6.0.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.activemq:apache-activemq","product":"Apache ActiveMQ","vendor":"Apache Software Foundation","versions":[{"lessThan":"5.19.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.2.6","status":"affected","version":"6.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/affected/0
{"collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected","packageName":"org.apache.activemq:activemq-web","product":"Apache ActiveMQ Web","vendor":"Apache Software Foundation","versions":[{"lessThan":"5.19.7","status":"affected","version":"0","versionType":"semver"},{"lessThan":"6.2.6","status":"affected","version":"6.0.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/adp/1/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"http://www.openwall.com/lists/oss-security/2026/05/31/17"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/adp/0/references/0
{"tags":["vendor-advisory"],"url":"https://lists.apache.org/thread/j9vmlc410ht5f28fc98gx75jcbq62j00"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:2004fd1c5cb3da0410744157d8b39e0c68fba62864829b75926f18e89e0b0a91 · sha256:8d7b0d0be0d76d9c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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