CVE-2026-77067

MEDIUMPre-NVD 5.05.0—
EchelonGraph scoreHIGH confidence

Score 5.0 from GitHub Security Advisory published 2026-08-20. a secondary CVSS source baseline 5.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 3 sources updated this weekElevated
5.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 5.0Exploit: Elevated riskExposed: 0

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

The setWebhookResolver in packages/api/src/resolvers/webhooks/index.ts stores the caller-supplied url without any address validation, and the file imports no validation helper. When a subscribed event fires, callWebhook in packages/api/src/jobs/call_webhook.ts issues axios.request with that url, the method and Content-Type recorded on the webhook, and a JSON body carrying the event data, so an authenticated user can make the server send repeated attacker-shaped requests to internal endpoints, including link-local metadata addresses. The request is blind: callWebhook discards the result and writes only a success line or the axios error to the server log, so the response is not returned through the API.

CVSS v3
5.0
EG Score
5.0(high)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity50% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
—
EPSS %ILE
—
KEV
Not listed

Published

August 20, 2026

Last Modified

August 20, 2026

Advisory Details (6)

Auto-updated Aug 20, 2026
🔬 Proof of concept available. Upstream fix merged — awaiting tagged release. Sources: github_commit.
generic

Omnivore Stored Server-Side Request Forgery via the setWebhook Mutation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/omnivore-stored-server-side-request-forgery-via-the-setwebhook-mutation
generic

GitHub - omnivore-app/omnivore: Omnivore is a complete, open source read-it-later solution for people who like reading. · GitHub

https://github.com/omnivore-app/omnivore
generic

omnivore/packages/api/src/jobs/call_webhook.ts at 0d66408746788e07cec43928581b2567308ab575 · omnivore-app/omnivore · GitHub

https://github.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/jobs/call_webhook.ts#L36
generic

omnivore/packages/api/src/resolvers/webhooks/index.ts at 0d66408746788e07cec43928581b2567308ab575 · omnivore-app/omnivore · GitHub

https://github.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/resolvers/webhooks/index.ts#L108
github_commit

commit c4d7d8562e6b (omnivore-app/omnivore)

Fix landed in omnivore-app/omnivore commit c4d7d8562e6b — awaiting tagged release

https://github.com/omnivore-app/omnivore/commit/c4d7d8562e6b9aabb1d8e4dabca268e314baa43a
generic🟡 PoC Available

SSRF via scanFeeds GraphQL query · Issue #4647 · omnivore-app/omnivore · GitHub

https://github.com/omnivore-app/omnivore/issues/4647

Vendor Advisories for CVE-2026-77067(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 7× in last 7d / 7× 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. 2026-08-20 15:27 UTCEG score recompute
  2. 2026-08-20 15:27 UTCGHSA enrichment
  3. 2026-08-20 14:57 UTCEG score recompute
  4. 2026-08-20 14:57 UTCGHSA enrichment
  5. 2026-08-20 11:27 UTCEG score recompute
  6. 2026-08-20 11:12 UTCEG score recompute
  7. 2026-08-20 11:11 UTCMITRE cvelistV5first tracked

Frequently asked(4)

What is CVE-2026-77067?
CVE-2026-77067 is a medium vulnerability published on August 20, 2026. The setWebhookResolver in packages/api/src/resolvers/webhooks/index.ts stores the caller-supplied url without any address validation, and the file imports no validation helper. When a subscribed event fires, callWebhook in packages/api/src/jobs/call_webhook.ts issues axios.request with that url,…
When was CVE-2026-77067 disclosed?
CVE-2026-77067 was first published in the National Vulnerability Database on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-77067?
CVE-2026-77067 has a CVSS v3 base score of 5.0 (NVD).
How do I remediate CVE-2026-77067?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-77067, 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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