Apache Roller: Cross-weblog resource tampering via unscoped authoring lookups

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-82348
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-28 08:16:40 UTC
Updated2026-09-29 15:17:29 UTC
DescriptionAuthorization Bypass Through User-Controlled Key in Apache Roller 6.1.5 allows an authenticated user with authoring rights on one weblog to read, modify, or delete resources belonging to another weblog through unscoped identifier-based lookups. This affects multi-user installations where users are intended to be isolated between weblogs; no optional feature or non-default configuration is required. A user with administrator rights on their weblog can also overwrite another weblog's Velocity template, whose content is evaluated when the victim weblog renders. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which scopes authoring resource lookups to the acting weblog.

Risk And Classification

Primary CVSS: v3.1 7.7 HIGH from [email protected]

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:L

EPSS: 0.003650000 probability, percentile 0.278200000 (date 2026-09-29)

Problem Types: CWE-639 | CWE-639 CWE-639: Authorization Bypass Through User-Controlled Key

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:L
3.1CNACVSS7.7HIGHCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:H/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache Roller affected 6.1.5 semver Not specified

References

ReferenceSourceLinkTags
github.com/apache/roller/pull/162 [email protected] github.com
lists.apache.org/thread/3h7zk8dhbt8fj5zdt8cjghx0b807wgy1 [email protected] lists.apache.org
www.openwall.com/lists/oss-security/2026/09/25/7 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: meifukun (en)

CNA: n0mi1k (en)

CNA: Ivan Iushkevich (Steph) (en)

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