CVE-2026-56663

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 87% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
8.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.5Exploit: NoneExposed: 0

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

AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Prior to 0.6.52, an authenticated user can bypass the SSRF / private-IP protections in SendWebRequestBlock and reach internal network services. _is_ip_blocked() in backend/backend/util/request.py does not normalize IPv4-mapped IPv6 addresses before checking resolved IPs against the blocked IPv4 ranges, and does not block special-use ranges such as 100.64.0.0/10 (CGNAT, RFC 6598). A hostname that resolves to an IPv4-mapped IPv6 address therefore passes validation and the request reaches the embedded internal IPv4 endpoint. This affects all AutoGPT Platform deployments. This vulnerability is fixed in 0.6.52.

CVSS v3
8.5
EG Score
8.5(medium)
EPSS
13.0%
KEV
Not listed

Published

June 26, 2026

Last Modified

June 26, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
Patch available. Sources: github.
github Patch Available

SSRF in `SendWebRequestBlock` via IPv4-mapped IPv6 / CGNAT IP-validation bypass · Advisory · Significant-Gravitas/AutoGPT · GitHub

https://github.com/Significant-Gravitas/AutoGPT/security/advisories/GHSA-8qc5-rhmg-r6r6

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 60× 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. 2026-07-14 05:44 UTCEG score recompute
  2. 2026-07-13 22:31 UTCEPSS rescore
  3. 2026-07-13 16:39 UTCEG score recompute
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-13 03:20 UTCEG score recompute
  7. 2026-07-12 14:13 UTCEG score recompute
  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-12 01:04 UTCEG score recompute
  10. 2026-07-11 11:58 UTCEG score recompute
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-10 22:53 UTCEG score recompute
  14. 2026-07-10 09:47 UTCEG score recompute
  15. 2026-07-09 20:34 UTCEG score recompute
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-09 19:10 UTCEPSS rescore
  18. 2026-07-09 07:27 UTCEG score recompute
  19. 2026-07-08 18:22 UTCEG score recompute
  20. 2026-07-08 15:16 UTCEPSS rescore
  21. 2026-07-08 15:16 UTCEPSS rescore
  22. 2026-07-08 05:15 UTCEG score recompute
  23. 2026-07-07 16:08 UTCEG score recompute
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-07 13:46 UTCEPSS rescore
Show 35 more
  1. 2026-07-07 02:41 UTCEG score recompute
  2. 2026-07-06 16:27 UTCEPSS rescore
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 13:35 UTCEG score recompute
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-06 02:23 UTCEPSS rescore
  7. 2026-07-06 00:28 UTCEG score recompute
  8. 2026-07-05 11:22 UTCEG score recompute
  9. 2026-07-05 02:31 UTCEPSS rescore
  10. 2026-07-05 02:30 UTCEPSS rescore
  11. 2026-07-04 22:17 UTCEG score recompute
  12. 2026-07-04 09:11 UTCEG score recompute
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-04 06:31 UTCEPSS rescore
  15. 2026-07-03 20:05 UTCEG score recompute
  16. 2026-07-03 07:00 UTCEG score recompute
  17. 2026-07-02 17:46 UTCEG score recompute
  18. 2026-07-02 04:41 UTCEG score recompute
  19. 2026-07-01 15:36 UTCEG score recompute
  20. 2026-07-01 15:07 UTCEPSS rescore
  21. 2026-07-01 02:31 UTCEG score recompute
  22. 2026-06-30 23:22 UTCEPSS rescore
  23. 2026-06-30 13:25 UTCEG score recompute
  24. 2026-06-30 00:17 UTCEG score recompute
  25. 2026-06-29 14:06 UTCEPSS rescore
  26. 2026-06-29 11:11 UTCEG score recompute
  27. 2026-06-28 22:05 UTCEG score recompute
  28. 2026-06-28 14:07 UTCEPSS rescore
  29. 2026-06-28 08:59 UTCEG score recompute
  30. 2026-06-28 04:56 UTCEPSS rescore
  31. 2026-06-28 04:56 UTCEPSS rescore
  32. 2026-06-27 19:54 UTCEG score recompute
  33. 2026-06-27 06:48 UTCEG score recompute
  34. 2026-06-26 17:41 UTCEG score recompute
  35. 2026-06-26 17:41 UTCNVD updatefirst tracked

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Frequently asked(5)

What is CVE-2026-56663?
CVE-2026-56663 is a high vulnerability published on June 26, 2026. AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Prior to 0.6.52, an authenticated user can bypass the SSRF / private-IP protections in SendWebRequestBlock and reach internal network services. isip_blocked() in…
When was CVE-2026-56663 disclosed?
CVE-2026-56663 was first published in the National Vulnerability Database on June 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56663 actively exploited?
CVE-2026-56663 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56663?
CVE-2026-56663 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-56663?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56663, 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.

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