CVE-2026-73095: Apache Juneau · Unthrottled Resource Allocation
Affects Apache JuneauSource CVE Database V5
Not known to be exploited · CVSS 8.7 High : upgrade to 9.2.1 soon.
Data as of 5 Nov 2026, 12:04 UTC
Thin evidence
One scorer or none| CNA (apache) | CVSS 4.0 | 8.7 |
|---|
- Patch
- Available – fixed in 9.2.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NExploitation 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-marshall and org.apache.juneau/juneau-rest-server to 9.2.1.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Juneauorg.apache.juneau:juneau-marshall | Affected
| Fixed in
|
| Apache Juneauorg.apache.juneau:juneau-rest-server | Affected
| Fixed in
|
Mavenorg.apache.juneau/juneau-marshallpkg:maven/org.apache.juneau/juneau-marshallOther threats | Affected
| Fixed in
|
Mavenorg.apache.juneau/juneau-rest-serverpkg:maven/org.apache.juneau/juneau-rest-serverOther 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. No other mitigation or temporary workaround is indicated.
Description
CVE-2026-73095 is a high-severity vulnerability in Apache Juneau through version 9.2.0. It involves allocation of resources without limits or throttling in the MessagePack parser enabled by default in the REST server. An unauthenticated client can trigger multi-gigabyte memory allocations causing an OutOfMemoryError and denial of service. Related unbounded allocations in multipart uploads and request reader buffers are also addressed. The issue is fixed in version 9.2.1.