CVE-2026-56244

HIGHPre-NVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 91% 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
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

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

Capgo before 12.128.2 allows non-admin API keys to read webhook signing secrets via Supabase REST due to insufficient row-level security policies on the webhooks table. Attackers can retrieve the webhook secret and forge valid X-Capgo-Signature headers to send authenticated webhook events to configured receivers, breaking webhook authenticity and integrity.

CVSS v3
7.1
EG Score
7.1(medium)
EPSS
9.2%
KEV
Not listed

Published

June 24, 2026

Last Modified

June 25, 2026

Advisory Details (2)

Auto-updated Jun 25, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Non-admin API keys can read webhook signing secrets (webhooks.secret) via Supabase REST, enabling forged Capgo webhooks · Advisory · Cap-go/capgo · GitHub

https://github.com/Cap-go/capgo/security/advisories/GHSA-qrrx-x3qf-x87v
generic

Capgo - Webhook Signing Secret Disclosure via Non-Admin API Key | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-webhook-signing-secret-disclosure-via-non-admin-api-key

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 71× 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. 2026-07-15 22:13 UTCEG score recompute
  2. 2026-07-15 16:57 UTCEPSS rescore
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  20. 2026-07-10 23:54 UTCEG score recompute
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  25. 2026-07-09 08:21 UTCEG score recompute
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  1. 2026-07-08 19:14 UTCEG score recompute
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  4. 2026-07-08 06:06 UTCEG score recompute
  5. 2026-07-07 16:59 UTCEG score recompute
  6. 2026-07-07 13:46 UTCEPSS rescore
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  8. 2026-07-07 03:03 UTCEG score recompute
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  18. 2026-07-04 22:36 UTCEG score recompute
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  20. 2026-07-04 06:31 UTCEPSS rescore
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  22. 2026-07-03 20:23 UTCEG score recompute
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  24. 2026-07-02 18:11 UTCEG score recompute
  25. 2026-07-02 05:04 UTCEG score recompute
  26. 2026-07-01 15:58 UTCEG score recompute
  27. 2026-07-01 15:07 UTCEPSS rescore
  28. 2026-07-01 02:51 UTCEG score recompute
  29. 2026-06-30 23:22 UTCEPSS rescore
  30. 2026-06-30 13:45 UTCEG score recompute
  31. 2026-06-30 00:39 UTCEG score recompute
  32. 2026-06-29 14:06 UTCEPSS rescore
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  34. 2026-06-29 11:32 UTCEG score recompute
  35. 2026-06-28 22:26 UTCEG score recompute
  36. 2026-06-28 14:07 UTCEPSS rescore
  37. 2026-06-28 09:20 UTCEG score recompute
  38. 2026-06-28 04:56 UTCEPSS rescore
  39. 2026-06-28 04:56 UTCEPSS rescore
  40. 2026-06-27 20:13 UTCEG score recompute
  41. 2026-06-27 07:07 UTCEG score recompute
  42. 2026-06-27 03:08 UTCEPSS rescore
  43. 2026-06-26 18:00 UTCEG score recompute
  44. 2026-06-26 04:54 UTCEG score recompute
  45. 2026-06-25 15:48 UTCEG score recompute
  46. 2026-06-25 15:47 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56244?
CVE-2026-56244 is a high vulnerability published on June 24, 2026. Capgo before 12.128.2 allows non-admin API keys to read webhook signing secrets via Supabase REST due to insufficient row-level security policies on the webhooks table. Attackers can retrieve the webhook secret and forge valid X-Capgo-Signature headers to send authenticated webhook events to…
When was CVE-2026-56244 disclosed?
CVE-2026-56244 was first published in the National Vulnerability Database on June 24, 2026, with the most recent update on June 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56244 actively exploited?
CVE-2026-56244 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56244?
CVE-2026-56244 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-56244?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56244, 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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