CVE-2026-80207

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreHIGH confidence

Score 5.3 from GitHub Security Advisory published 2026-08-27. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: Elevated riskExposed: 0

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

APITable through 1.13.0-beta.1 annotates the create handler of InternalNotifyController with requiredLogin = false. ResourceInterceptor honours that annotation by returning before any session or API key is validated, and the nginx gateway shipped with the product proxies every /api request to the backend server, so POST /api/v1/internal/notification/create is reachable by any unauthenticated client that can reach the gateway. An attacker can persist arbitrary notifications in apitable_player_notification against any user ID they name, and because fromUserId can be set to 0 the message is stored with the system sender and renders in the victim's inbox as a legitimate system notification. The body extras content is stored verbatim and forwarded to the frontend.

CVSS v3
5.3
EG Score
5.3(high)
EG Risk
55(Attend)
EG Risk 55/100SSVC: Attend

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
Severity53% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
21%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 27, 2026

Advisory Details (4)

Auto-updated Aug 27, 2026
No patch confirmed yet.
generic

APITable through 1.13.0-beta.1 Missing Authentication on the Internal Notification Create Endpoint | Advisories | VulnCheck

https://www.vulncheck.com/advisories/apitable-through-1.13.0-beta.1-missing-authentication-on-the-internal-notification-create-endpoint
generic

apitable/backend-server/application/src/main/java/com/apitable/internal/controller/InternalNotifyController.java at 88b24ce9f359cc434778be75d03603182882dc76 · apitable/apitable · GitHub

https://github.com/apitable/apitable/blob/88b24ce9f359cc434778be75d03603182882dc76/backend-server/application/src/main/java/com/apitable/internal/controller/InternalNotifyController.java#L50
generic

GitHub - apitable/apitable: 🚀🎉📚 APITable, an API-oriented low-code platform for building collaborative apps and better than all other Airtable open-source alternatives. · GitHub

https://github.com/apitable/apitable
generic

Unauthenticated notification injection via /api/v1/internal/notification/create · Issue #1813 · apitable/apitable · GitHub

https://github.com/apitable/apitable/issues/1813

Vendor Advisories for CVE-2026-80207(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 13× in last 7d / 13× 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. 2026-08-30 01:24 UTCEG score recompute
  2. 2026-08-30 01:24 UTCGHSA enrichment
  3. 2026-08-30 01:22 UTCEPSS rescore
  4. 2026-08-28 23:54 UTCEG score recompute
  5. 2026-08-28 23:54 UTCGHSA enrichment
  6. 2026-08-28 21:42 UTCEPSS rescore
  7. 2026-08-27 20:27 UTCEG score recompute
  8. 2026-08-27 20:27 UTCGHSA enrichment
  9. 2026-08-27 20:18 UTCEG score recompute
  10. 2026-08-27 20:18 UTCGHSA enrichment
  11. 2026-08-27 17:27 UTCEG score recompute
  12. 2026-08-27 16:47 UTCEG score recompute
  13. 2026-08-27 16:43 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-80207?
CVE-2026-80207 is a medium vulnerability published on August 27, 2026. APITable through 1.13.0-beta.1 annotates the create handler of InternalNotifyController with requiredLogin = false. ResourceInterceptor honours that annotation by returning before any session or API key is validated, and the nginx gateway shipped with the product proxies every /api request to the…
When was CVE-2026-80207 disclosed?
CVE-2026-80207 was first published in the National Vulnerability Database on August 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-80207 actively exploited?
CVE-2026-80207 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 79.4% of all scored CVEs.
What is the CVSS score of CVE-2026-80207?
CVE-2026-80207 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-80207?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-80207, 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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