CVE-2026-108599 json
Phi 0.1.1 through 0.28.4 Symlink Workspace Write Restriction Bypass
published 2026-10-10 29 d ago modified 2026-10-16 23 d ago also EUVD-2026-96393
- cvss
- 4.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 6%
- public exploits
- 0
- none known
Summary
phi 0.1.1 through 0.28.4 contains an improper link resolution vulnerability that allows malicious repositories to bypass workspace_only_writes by exploiting lexical-only path checks in the permission gate. Attackers can commit symlinks pointing outside the workspace and use prompt injection to make the write tool write attacker-influenced content to external files without approval.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 26 d ago
Exploit prediction
0.17% chance of exploitation in the next 30 days, higher than 6% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.7 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 4.7 | CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |
| CNA | 4.0 | 5.7 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- pulseaiclub phi
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
hackmd.io
/@haind/phi-symlink-permission-boundary
third-party-advisory
-
github.com
/pulseaiclub/phi/blob/5b3cb440a7c58115ef64283a737a43299f2805a4/internal/permission/gate.go#L106-L119
technical-description
-
github.com
/pulseaiclub/phi/blob/5b3cb440a7c58115ef64283a737a43299f2805a4/internal/tools/writetool/write.go#L64-L68
technical-description
-
github.com
/pulseaiclub/phi
product
-
vulncheck.com
/advisories/phi-0.1.1-through-0.28.4-symlink-workspace-write-restriction-bypass
third-party-advisory
Sources
- CVE List CVE-2026-108599
- NVD CVE-2026-108599
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