Local file disclosure via basename-collision fallback
Published Sep 10, 2026 · Updated Sep 10, 2026
Path traversal in proma-ai Proma 0.19.37 and earlier allows local users to read files outside approved preview directories via crafted paths. The File Preview Service's resolveTargetPath function falls back to the first candidate whose basename matches file_path, without proving that the resolved file remains beneath an allowed base directory. Local access to the desktop application's file-preview IPC path is required, and successful exploitation discloses files readable by the Proma process.
Summary
What happened
Path traversal in proma-ai Proma 0.19.37 and earlier allows local users to read files outside approved preview directories via crafted paths. The File Preview Service's resolveTargetPath function falls back to the first candidate whose basename matches file_path, without proving that the resolved file remains beneath an allowed base directory. Local access to the desktop application's file-preview IPC path is required, and successful exploitation discloses files readable by the Proma process.
The record
- CVE
- CVE-2026-88790
- Published
- Sep 10, 2026
- Updated
- Sep 10, 2026
- Vendor
- proma-ai
- Product
- Proma
- Classifications
- T1005
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 10, 2026CVE publishedPublication date reported by the CVE source.
- Sep 10, 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=0.16.3
- Affected versionversion=0.16.9
- Affected versionversion=0.17.1
- Affected versionversion=0.17.15
- Affected versionversion=0.18.1
- Affected versionversion=0.18.2
- Affected versionversion=0.19.1
- Affected versionversion=0.19.16
- Affected versionversion=0.19.23
- Affected versionversion=0.19.26
- Affected versionversion=0.19.31
- Affected versionversion=0.19.37
- Affected versionversion=0.19.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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