Cross-user disclosure and deletion via unchecked lookup
Published Jun 28, 2026 · Updated Jun 28, 2026
Improper authorization in VoltAgent 2.1.0 through 2.1.17 allows remote authenticated users to read or delete other users' memory conversations. Memory REST API handlers use a caller-supplied conversationId to fetch conversations, messages, and working memory or delete a conversation without receiving the authenticated principal or verifying ownership. Any authenticated account that knows or guesses another user's conversation ID can disclose stored messages and working memory or delete that conversation; no integrity impact beyond the targeted deletion is established.
Summary
What happened
Improper authorization in VoltAgent 2.1.0 through 2.1.17 allows remote authenticated users to read or delete other users' memory conversations. Memory REST API handlers use a caller-supplied conversationId to fetch conversations, messages, and working memory or delete a conversation without receiving the authenticated principal or verifying ownership. Any authenticated account that knows or guesses another user's conversation ID can disclose stored messages and working memory or delete that conversation; no integrity impact beyond the targeted deletion is established.
The record
- CVE
- CVE-2026-13511
- Published
- Jun 28, 2026
- Updated
- Jun 28, 2026
- Vendor
- VoltAgent
- Product
- VoltAgent
- Classifications
- CWE-266, CWE-285, T1213
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 28, 2026CVE publishedPublication date reported by the CVE source.
- Jun 28, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.1.0
- Affected versionversion=2.1.1
- Affected versionversion=2.1.10
- Affected versionversion=2.1.11
- Affected versionversion=2.1.12
- Affected versionversion=2.1.13
- Affected versionversion=2.1.14
- Affected versionversion=2.1.15
- Affected versionversion=2.1.16
- Affected versionversion=2.1.17
- Affected versionversion=2.1.2
- Affected versionversion=2.1.3
- Affected versionversion=2.1.4
- Affected versionversion=2.1.5
- Affected versionversion=2.1.6
- Affected versionversion=2.1.7
- Affected versionversion=2.1.8
- Affected versionversion=2.1.9
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Synthetic Memory REST API IDOR proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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