CVE-2026-88790

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreHIGH confidence

Score 4.8 from GitHub Security Advisory (severity: LOW) published 2026-09-10. a secondary CVSS source baseline 4.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A security vulnerability has been detected in proma-ai Proma up to 0.19.37. Affected is the function resolveTargetPath of the file apps/electron/src/main/lib/file-preview-service.ts of the component File Preview Service. Such manipulation of the argument file_path leads to path traversal. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used. Upgrading to version 0.19.52 is able to address this issue. The name of the patch is b7bf78ab74b1552c92fc98c7db9a8a8d92c631df. It is suggested to upgrade the affected component. The PoC's candidateBasePaths parameter name does not match the current IPC API (0.19.52 uses FileAccessOptions with internal getPreviewCandidateBasePaths()). The reporter likely targeted 0.16.3 where the IPC handler accepted raw string[] base paths. The core vulnerability - basename-collision fallback - is independent of the parameter name and is confirmed in source.

CVSS v3
4.8
EG Score
4.8(high)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity48% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

September 10, 2026

Last Modified

September 10, 2026

Advisory Details (5)

Auto-updated Sep 10, 2026
Patch available. Sources: github_pr, github_commit, github_release.
generic

GitHub - proma-ai/Proma: Proma brings a seamless general-purpose Agent experience to your workflow. Built for 100× professionals and the proactive Agent era · GitHub

https://github.com/proma-ai/Proma/
github_release Patch Available

0.19.52

Patch available: proma-ai/Proma v0.19.52

https://github.com/proma-ai/Proma/releases/tag/v0.19.52
github_commit

commit b7bf78ab74b1 (proma-ai/Proma)

Fix landed in proma-ai/Proma commit b7bf78ab74b1 — awaiting tagged release

https://github.com/proma-ai/Proma/commit/b7bf78ab74b1552c92fc98c7db9a8a8d92c631df
github_pr

fix(agent): resolve home paths and render local images

Fix merged in proma-ai/Proma PR #2030 on 2026-09-08 — awaiting tagged release

https://github.com/proma-ai/Proma/pull/2030
generic

Path Traversal (CWE-22/CWE-73) in Electron preview path resolution allows unauthorized file read and overwrite · Issue #1366 · proma-ai/Proma · GitHub

https://github.com/proma-ai/Proma/issues/1366

Vendor Advisories for CVE-2026-88790(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 51× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-25 11:52 UTCEG score recompute
  2. 2026-09-25 11:52 UTCGHSA enrichment
  3. 2026-09-24 14:04 UTCEPSS rescore
  4. 2026-09-24 10:38 UTCEG score recompute
  5. 2026-09-24 10:38 UTCGHSA enrichment
  6. 2026-09-23 17:54 UTCEPSS rescore
  7. 2026-09-23 09:19 UTCEG score recompute
  8. 2026-09-23 09:19 UTCGHSA enrichment
  9. 2026-09-22 16:01 UTCEPSS rescore
  10. 2026-09-22 08:04 UTCEG score recompute
  11. 2026-09-22 08:04 UTCGHSA enrichment
  12. 2026-09-21 21:09 UTCEPSS rescore
  13. 2026-09-21 06:51 UTCEG score recompute
  14. 2026-09-21 06:51 UTCGHSA enrichment
  15. 2026-09-20 20:16 UTCEPSS rescore
  16. 2026-09-20 05:37 UTCEG score recompute
  17. 2026-09-20 05:37 UTCGHSA enrichment
  18. 2026-09-19 04:23 UTCEG score recompute
  19. 2026-09-19 04:23 UTCGHSA enrichment
  20. 2026-09-18 19:28 UTCEPSS rescore
  21. 2026-09-18 03:10 UTCEG score recompute
  22. 2026-09-18 03:10 UTCGHSA enrichment
  23. 2026-09-17 19:32 UTCEPSS rescore
  24. 2026-09-17 01:56 UTCEG score recompute
  25. 2026-09-17 01:56 UTCGHSA enrichment
Show 26 more
  1. 2026-09-16 14:09 UTCEPSS rescore
  2. 2026-09-16 05:15 UTCEPSS rescore
  3. 2026-09-16 00:42 UTCEG score recompute
  4. 2026-09-16 00:42 UTCGHSA enrichment
  5. 2026-09-15 03:12 UTCEPSS rescore
  6. 2026-09-14 23:28 UTCGHSA enrichment
  7. 2026-09-13 22:04 UTCEG score recompute
  8. 2026-09-13 22:04 UTCGHSA enrichment
  9. 2026-09-13 16:48 UTCEPSS rescore
  10. 2026-09-12 20:50 UTCEG score recompute
  11. 2026-09-12 20:50 UTCGHSA enrichment
  12. 2026-09-12 15:02 UTCEPSS rescore
  13. 2026-09-11 19:36 UTCEG score recompute
  14. 2026-09-11 19:36 UTCGHSA enrichment
  15. 2026-09-11 14:53 UTCEPSS rescore
  16. 2026-09-11 14:53 UTCEPSS rescore
  17. 2026-09-10 18:22 UTCEG score recompute
  18. 2026-09-10 18:22 UTCGHSA enrichment
  19. 2026-09-10 18:21 UTCNVD updateCVSS v4 → 0.9
  20. 2026-09-10 18:05 UTCEG score recompute
  21. 2026-09-10 18:05 UTCGHSA enrichment
  22. 2026-09-10 18:04 UTCMITRE cvelistV5CVSS v4 → 2.4
  23. 2026-09-10 14:19 UTCEG score recompute
  24. 2026-09-10 14:19 UTCNVD updateCVSS v4 → 0.9
  25. 2026-09-10 14:06 UTCEG score recompute
  26. 2026-09-10 14:04 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-88790?
CVE-2026-88790 is a medium vulnerability published on September 10, 2026. A security vulnerability has been detected in proma-ai Proma up to 0.19.37. Affected is the function resolveTargetPath of the file apps/electron/src/main/lib/file-preview-service.ts of the component File Preview Service. Such manipulation of the argument file_path leads to path traversal. Local…
When was CVE-2026-88790 disclosed?
CVE-2026-88790 was first published in the National Vulnerability Database on September 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-88790 actively exploited?
CVE-2026-88790 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.2% of all scored CVEs.
What is the CVSS score of CVE-2026-88790?
CVE-2026-88790 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-88790?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-88790, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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