Public vulnerability disclosure

CVE-2026-73100

Apache Juneau: Sensitive request headers logged in cleartext by the default request logger on server errors

publishedCWE-532

Insertion of Sensitive Information into Log File vulnerability in Apache Juneau. The default REST server call logger records request headers for requests that end in a server error, without redacting them. Any client able to cause a server error gets headers such as Authorization, Cookie, Proxy-Authorization and X-API-Key written in cleartext to the application log, exposing them to anyone who can read the logs. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue.

Technical severity10.0 criticalCVSS 4.0 · CNA: apache
Published2026-11-05Source updated 2026-11-05
Collected2026-11-051 attributed source

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Apache Juneau
Apache Software Foundation
org.apache.juneau:juneau-rest-server
maven
≥ 0; < 9.2.1 (affected, semver)
Other versions: unaffected
CNA: apache
Apache Juneau
Apache Software Foundation
org.apache.juneau:juneau-rest-common
maven
≥ 0; < 9.2.1 (affected, semver)
Other versions: unaffected
CNA: apache

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 10.0
critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HCNA: apache

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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