CVE-2026-82270

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/* route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal services and exfiltrate provider API keys.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 31, 2026

Advisory Details (4)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

Portkey AI Gateway Server-Side Request Forgery via /v1/proxy/* | Advisories | VulnCheck

https://www.vulncheck.com/advisories/portkey-ai-gateway-server-side-request-forgery-via-v1-proxy
generic

gateway/src/index.ts at 669825cbe89ee51569918b8f78a9db486fd69dd4 · Portkey-AI/gateway · GitHub

https://github.com/Portkey-AI/gateway/blob/669825cbe89ee51569918b8f78a9db486fd69dd4/src/index.ts
generic

GitHub - Portkey-AI/gateway: A blazing fast AI Gateway with integrated guardrails. Route to 1,600+ LLMs, 50+ AI Guardrails with 1 fast & friendly API. · GitHub

https://github.com/Portkey-AI/gateway
generic

SSRF allowlist bypass and credential theft via /v1/proxy/* route -- @portkey-ai/gateway <= 1.15.2 · Issue #1718 · Portkey-AI/gateway · GitHub

https://github.com/Portkey-AI/gateway/issues/1718

Vendor Advisories for CVE-2026-82270(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 27× in last 7d / 98× 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. 2026-09-21 08:52 UTCGHSA enrichment
  2. 2026-09-20 21:30 UTCEG score recompute
  3. 2026-09-20 21:29 UTCGHSA enrichment
  4. 2026-09-20 20:16 UTCEPSS rescore
  5. 2026-09-20 10:13 UTCGHSA enrichment
  6. 2026-09-19 22:58 UTCEG score recompute
  7. 2026-09-19 22:58 UTCGHSA enrichment
  8. 2026-09-19 11:43 UTCGHSA enrichment
  9. 2026-09-19 00:17 UTCEG score recompute
  10. 2026-09-19 00:17 UTCGHSA enrichment
  11. 2026-09-18 19:28 UTCEPSS rescore
  12. 2026-09-18 13:02 UTCGHSA enrichment
  13. 2026-09-18 01:47 UTCEG score recompute
  14. 2026-09-18 01:47 UTCGHSA enrichment
  15. 2026-09-17 14:32 UTCGHSA enrichment
  16. 2026-09-17 03:08 UTCGHSA enrichment
  17. 2026-09-16 15:46 UTCEG score recompute
  18. 2026-09-16 15:46 UTCGHSA enrichment
  19. 2026-09-16 14:08 UTCEPSS rescore
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-16 04:32 UTCGHSA enrichment
  22. 2026-09-15 17:15 UTCGHSA enrichment
  23. 2026-09-15 06:00 UTCEG score recompute
  24. 2026-09-15 06:00 UTCGHSA enrichment
  25. 2026-09-15 03:12 UTCEPSS rescore
Show 73 more
  1. 2026-09-15 03:12 UTCEPSS rescore
  2. 2026-09-14 18:45 UTCGHSA enrichment
  3. 2026-09-14 06:18 UTCGHSA enrichment
  4. 2026-09-13 19:04 UTCEG score recompute
  5. 2026-09-13 19:04 UTCGHSA enrichment
  6. 2026-09-13 07:49 UTCGHSA enrichment
  7. 2026-09-12 20:35 UTCEG score recompute
  8. 2026-09-12 20:35 UTCGHSA enrichment
  9. 2026-09-12 09:20 UTCGHSA enrichment
  10. 2026-09-11 22:05 UTCEG score recompute
  11. 2026-09-11 22:05 UTCGHSA enrichment
  12. 2026-09-11 14:53 UTCEPSS rescore
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 10:51 UTCEG score recompute
  15. 2026-09-11 10:51 UTCGHSA enrichment
  16. 2026-09-10 23:01 UTCGHSA enrichment
  17. 2026-09-10 11:47 UTCEG score recompute
  18. 2026-09-10 11:47 UTCGHSA enrichment
  19. 2026-09-09 23:53 UTCGHSA enrichment
  20. 2026-09-09 11:42 UTCGHSA enrichment
  21. 2026-09-09 00:28 UTCEG score recompute
  22. 2026-09-09 00:28 UTCGHSA enrichment
  23. 2026-09-08 22:01 UTCEPSS rescore
  24. 2026-09-08 07:56 UTCGHSA enrichment
  25. 2026-09-07 20:42 UTCEG score recompute
  26. 2026-09-07 20:41 UTCGHSA enrichment
  27. 2026-09-07 09:24 UTCGHSA enrichment
  28. 2026-09-06 22:01 UTCEG score recompute
  29. 2026-09-06 22:01 UTCGHSA enrichment
  30. 2026-09-06 13:48 UTCEPSS rescore
  31. 2026-09-06 10:46 UTCGHSA enrichment
  32. 2026-09-05 23:30 UTCEG score recompute
  33. 2026-09-05 23:30 UTCGHSA enrichment
  34. 2026-09-05 15:31 UTCEPSS rescore
  35. 2026-09-05 12:16 UTCGHSA enrichment
  36. 2026-09-05 01:02 UTCEG score recompute
  37. 2026-09-05 01:02 UTCGHSA enrichment
  38. 2026-09-04 13:48 UTCEG score recompute
  39. 2026-09-04 13:48 UTCGHSA enrichment
  40. 2026-09-04 05:07 UTCEPSS rescore
  41. 2026-09-04 02:31 UTCGHSA enrichment
  42. 2026-09-03 15:15 UTCGHSA enrichment
  43. 2026-09-03 03:58 UTCGHSA enrichment
  44. 2026-09-02 16:44 UTCEG score recompute
  45. 2026-09-02 16:44 UTCGHSA enrichment
  46. 2026-09-02 14:12 UTCEPSS rescore
  47. 2026-09-02 05:22 UTCGHSA enrichment
  48. 2026-09-01 18:06 UTCEG score recompute
  49. 2026-09-01 18:06 UTCGHSA enrichment
  50. 2026-09-01 13:54 UTCEPSS rescore
  51. 2026-09-01 06:49 UTCEG score recompute
  52. 2026-09-01 06:49 UTCGHSA enrichment
  53. 2026-09-01 04:40 UTCEPSS rescore
  54. 2026-09-01 04:40 UTCEPSS rescore
  55. 2026-08-31 19:31 UTCEG score recompute
  56. 2026-08-31 19:31 UTCGHSA enrichment
  57. 2026-08-31 18:57 UTCEG score recompute
  58. 2026-08-31 18:57 UTCGHSA enrichment
  59. 2026-08-31 16:46 UTCGHSA enrichment
  60. 2026-08-31 04:42 UTCEG score recompute
  61. 2026-08-31 04:42 UTCGHSA enrichment
  62. 2026-08-30 19:18 UTCEPSS rescore
  63. 2026-08-30 19:17 UTCEPSS rescore
  64. 2026-08-30 17:28 UTCGHSA enrichment
  65. 2026-08-30 06:13 UTCEG score recompute
  66. 2026-08-30 06:13 UTCGHSA enrichment
  67. 2026-08-30 01:22 UTCEPSS rescore
  68. 2026-08-29 18:58 UTCGHSA enrichment
  69. 2026-08-29 07:42 UTCEG score recompute
  70. 2026-08-29 07:42 UTCGHSA enrichment
  71. 2026-08-28 20:26 UTCEG score recompute
  72. 2026-08-28 19:40 UTCEG score recompute
  73. 2026-08-28 19:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82270?
CVE-2026-82270 is a high vulnerability published on August 28, 2026. Portkey AI Gateway through 1.15.2 contains a server-side request forgery vulnerability in the /v1/proxy/* route that lacks requestValidator middleware. Attackers can set the x-portkey-custom-host header to internal addresses and forward requests with Authorization headers to reach internal services…
When was CVE-2026-82270 disclosed?
CVE-2026-82270 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82270 actively exploited?
CVE-2026-82270 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 79.7% of all scored CVEs.
What is the CVSS score of CVE-2026-82270?
CVE-2026-82270 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-82270?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82270, 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

Explore the affected products and dependency analysis for CVE-2026-82270

Explore →

Is Your Infrastructure Affected by CVE-2026-82270?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs