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VulnerabilityPublished

CVE-2026-82384: Apache Roller · Deserialization of Untrusted Data

Affects Apache RollerSource CVE Database V5

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Not known to be exploited · CVSS 9.8 Critical · fixed in 6.1.6 : patch Apache Roller as a priority.

Data as of 12 Nov 2026, 23:24 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.9% chance of exploitation in 30 days – higher than 63% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.1.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Apache Software FoundationApache RollerAffected
  • =6.1.5
Fixed in–
Mavenorg.apache.roller/rollerpkg:maven/org.apache.roller/rollerOther threatsAffected
  • =6.1.5
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 to Apache Roller version 6.1.6 or later, which disables the vulnerable extension types and rejects XML-RPC requests when the feature is disabled. No non-default configuration is required to be vulnerable, so patching is strongly recommended.

Description

Apache Roller 6.1.5 contains a critical deserialization vulnerability in its XML-RPC endpoint that allows unauthenticated remote attackers to cause deserialization of attacker-controlled data. This occurs because the endpoint accepts vendor extension types that are deserialized before authentication, even if the XML-RPC feature is disabled globally. This flaw can lead to remote code execution. Upgrading to Apache Roller 6.1.6 or later mitigates the issue by disabling these extension types and rejecting requests when XML-RPC is disabled.

References

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