Apache Juneau: Cross-site scripting via unescaped request variables in HTML-doc chrome
- Exploited
- No known exploitation
- Fix
- Fixed in 9.2.1
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 9.2.1.
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 37/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Apache Juneau is affected by a cross-site scripting flaw in its HTML document serializer, where request-derived values placed in page chrome such as headers or footers are not encoded. An attacker can reach it remotely, without logging in, and inject script into pages served by applications that add request variables to that chrome; the default chrome is not affected.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Juneau.
HTML document serialization does not HTML-encode variable substitutions in the page chrome (header, nav, aside, footer and similar fields). Applications whose chrome includes request-derived variables, such as request headers, form data or path values, reflect those values unencoded, allowing cross-site scripting. The default chrome does not use request variables, so only applications that add them are affected.
This issue affects Apache Juneau: through 9.2.0.
Users are recommended to upgrade to version 9.2.1, which fixes the issue.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure17/25No login or user action needed per the CVSS vector, reachable over the network without a login · Unknown: No advisory context yet
- Reach10/20Affects Maven packages
- Severity10/10CVSS 10.0
- No patch0/5No signal
What would change the score
- Would score about 82 if added to CISA KEV
- Would score about 77 if CISA's SSVC rates exploitation active
- Would score about 42 if advisories confirm default setups are exposed
Impact
- Widely used
24 packages depend on org.apache.juneau:juneau-marshall.Source: deps.dev
What to do
Upgrade to a fixed version: 9.2.1.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- org.apache.juneau:juneau-marshallMaven
fixed in 9.2.1
Evidence 1
- Advisory
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-96677
Is CVE-2026-96677 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-96677?
org.apache.juneau:juneau-marshall (Maven): before 9.2.1.Source: cve.now feed data
How do I fix CVE-2026-96677?
Upgrade to a fixed version: 9.2.1.Source: cve.now feed data