CVE-2026-22661: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in prompts.chat
prompts. chat versions prior to commit 0f8d4c3 contain a path traversal vulnerability in the handling of skill files. This flaw allows attackers to craft malicious ZIP archives with filenames containing path traversal sequences (.. /) that bypass server-side validation. When extracted, these archives can write files outside the intended directory, potentially overwriting shell initialization files and enabling code execution. The vulnerability has a high severity with a CVSS score of 8. 6. No official patch or remediation guidance is currently available, and no known exploits in the wild have been reported.
AI Analysis
Technical Summary
CVE-2026-22661 is a path traversal vulnerability (CWE-22) in prompts.chat prior to commit 0f8d4c3. The vulnerability arises from improper limitation of pathname during skill file handling, allowing attackers to include path traversal sequences in ZIP archive filenames. This lack of server-side filename validation enables extraction of files outside the intended directory, including overwriting critical shell initialization files, which can lead to arbitrary code execution on the client system.
Potential Impact
Successful exploitation allows an unauthenticated attacker to write arbitrary files to the client system by exploiting path traversal sequences in skill file archives. This can lead to overwriting shell initialization files, resulting in potential arbitrary code execution. The vulnerability is remotely exploitable without privileges or user interaction other than triggering the extraction of the malicious archive. The CVSS 4.0 score of 8.6 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid extracting skill file ZIP archives from untrusted sources. Implementing manual validation or sandboxing extraction processes may reduce risk but are not guaranteed to fully mitigate the vulnerability.
CVE-2026-22661: CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in prompts.chat
Description
prompts. chat versions prior to commit 0f8d4c3 contain a path traversal vulnerability in the handling of skill files. This flaw allows attackers to craft malicious ZIP archives with filenames containing path traversal sequences (.. /) that bypass server-side validation. When extracted, these archives can write files outside the intended directory, potentially overwriting shell initialization files and enabling code execution. The vulnerability has a high severity with a CVSS score of 8. 6. No official patch or remediation guidance is currently available, and no known exploits in the wild have been reported.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-22661 is a path traversal vulnerability (CWE-22) in prompts.chat prior to commit 0f8d4c3. The vulnerability arises from improper limitation of pathname during skill file handling, allowing attackers to include path traversal sequences in ZIP archive filenames. This lack of server-side filename validation enables extraction of files outside the intended directory, including overwriting critical shell initialization files, which can lead to arbitrary code execution on the client system.
Potential Impact
Successful exploitation allows an unauthenticated attacker to write arbitrary files to the client system by exploiting path traversal sequences in skill file archives. This can lead to overwriting shell initialization files, resulting in potential arbitrary code execution. The vulnerability is remotely exploitable without privileges or user interaction other than triggering the extraction of the malicious archive. The CVSS 4.0 score of 8.6 reflects high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid extracting skill file ZIP archives from untrusted sources. Implementing manual validation or sandboxing extraction processes may reduce risk but are not guaranteed to fully mitigate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-01-08T19:04:26.364Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d026ec0a160ebd92592ffe
Added to database: 4/3/2026, 8:45:32 PM
Last enriched: 4/3/2026, 9:01:18 PM
Last updated: 4/4/2026, 5:34:16 AM
Views: 4
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