CVE-2026-73116: Apache Juneau · Insufficiently Protected Credentials
Affects Apache JuneauSource CVE Database V5
Not known to be exploited · CVSS 10.0 Critical : upgrade to 9.2.1 as a priority.
Data as of 5 Nov 2026, 12:04 UTC
Thin evidence
One scorer or none| CNA (apache) | CVSS 4.0 | 10.0 |
|---|
- Patch
- Available – fixed in 9.2.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.
What to do
Upgrade Apache Juneau and org.apache.juneau/juneau-rest-client and org.apache.juneau/juneau-rest-common to 9.2.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Juneauorg.apache.juneau:juneau-rest-client | Affected
| Fixed in
|
| Apache Juneauorg.apache.juneau:juneau-rest-common | Affected
| Fixed in
|
Mavenorg.apache.juneau/juneau-rest-clientpkg:maven/org.apache.juneau/juneau-rest-clientOther threats | Affected
| Fixed in
|
Mavenorg.apache.juneau/juneau-rest-commonpkg:maven/org.apache.juneau/juneau-rest-commonOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache Juneau to version 9.2.1 or later, where the issue is fixed for HTTP clients created by the RestClient builder. For applications that supply their own HttpClient, it is necessary to either disable automatic redirects or implement logic to strip credential headers on cross-origin redirects to prevent credential leakage.
Description
CVE-2026-73116 is a critical vulnerability in Apache Juneau through version 9.2.0 where the RestClient improperly retains credential headers during HTTP redirects. This allows sensitive headers such as Authorization, Cookie, Proxy-Authorization, and X-API-Key to be sent to unintended hosts or downgraded protocols. The issue is fixed in version 9.2.1.