CVE-2026-77825

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreHIGH confidence

Score 4.9 from GitHub Security Advisory published 2026-09-24. A secondary CVSS source baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 4.9Exploit: None knownExposed services: Not assessed

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

IBM ContextForge MCP Gateway 1.0.0 through 1.0.8 was vulnerable to path traversal in its Admin API log-download endpoint (GET /v1/admin/logs/file). The path confinement check uses str.startswith() rather than proper boundary validation, allowing an authenticated admin to read .log, .jsonl, and .json files outside the configured LOG_FOLDER by supplying a filename that resolves into a sibling directory whose absolute path shares the log directory's string prefix.

CVSS v3
4.9
EG Score
4.9MEDIUMhigh confidence
EG Risk
22
EG Risk 22/100CISA SSVC

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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
22nd
KEV
Not listed

CISA SSVCTrack at every mission impact level.

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 24, 2026

Last Modified

September 29, 2026

Advisory Details (1)

Auto-updated Sep 24, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM ContextForge MCP Gateway is affected by path traversal

https://www.ibm.com/support/pages/node/7289314

Vendor Advisories for CVE-2026-77825(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 18× in last 7d / 32× 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. 2026-10-03 16:42 UTCEG score recompute
  2. 2026-10-03 16:42 UTCGHSA enrichment
  3. 2026-10-03 14:26 UTCEPSS rescore
  4. 2026-10-02 16:02 UTCEG score recompute
  5. 2026-10-02 16:01 UTCGHSA enrichment
  6. 2026-10-01 19:50 UTCEPSS rescore
  7. 2026-10-01 15:17 UTCEG score recompute
  8. 2026-10-01 15:17 UTCGHSA enrichment
  9. 2026-09-30 14:37 UTCEG score recompute
  10. 2026-09-30 14:37 UTCGHSA enrichment
  11. 2026-09-29 15:24 UTCEPSS rescore
  12. 2026-09-29 13:44 UTCGHSA enrichment
  13. 2026-09-29 00:49 UTCEG score recompute
  14. 2026-09-29 00:49 UTCGHSA enrichment
  15. 2026-09-28 13:52 UTCEPSS rescore
  16. 2026-09-28 00:08 UTCEG score recompute
  17. 2026-09-28 00:08 UTCGHSA enrichment
  18. 2026-09-27 13:48 UTCEPSS rescore
  19. 2026-09-26 23:27 UTCEG score recompute
  20. 2026-09-26 23:27 UTCGHSA enrichment
  21. 2026-09-26 22:55 UTCEG score recompute
  22. 2026-09-26 22:55 UTCGHSA enrichment
  23. 2026-09-26 21:23 UTCEG score recompute
  24. 2026-09-26 21:23 UTCGHSA enrichment
  25. 2026-09-26 15:59 UTCEPSS rescore
Show 7 more
  1. 2026-09-26 00:28 UTCEPSS rescore
  2. 2026-09-25 20:40 UTCGHSA enrichment
  3. 2026-09-24 19:55 UTCEG score recompute
  4. 2026-09-24 19:55 UTCGHSA enrichment
  5. 2026-09-24 15:28 UTCEG score recompute
  6. 2026-09-24 14:48 UTCEG score recompute
  7. 2026-09-24 14:47 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77825?
CVE-2026-77825 is a medium vulnerability published on September 24, 2026. IBM ContextForge MCP Gateway 1.0.0 through 1.0.8 was vulnerable to path traversal in its Admin API log-download endpoint (GET /v1/admin/logs/file). The path confinement check uses str.startswith() rather than proper boundary validation, allowing an authenticated admin to read .log, .jsonl, and…
When was CVE-2026-77825 disclosed?
CVE-2026-77825 was first published on September 24, 2026, with the most recent update on September 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-77825 actively exploited?
CVE-2026-77825 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (22nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77825?
CVE-2026-77825 has a CVSS base score of 4.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-77825?
No fix for CVE-2026-77825 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-77825 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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