CVE-2026-62861

MEDIUMPre-NVD 6.46.4—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 67% 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
Trending — 3 sources updated this week
6.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.4Exploit: None knownExposed: 0

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

TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a client-supplied workspaceId but sends the client-supplied domain name to the shared Vercel project before verifying that the domain belongs to that workspace. This issue is fixed in version 3.18.0.

CVSS v3
6.4
EG Score
6.4(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity64% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

August 25, 2026

Last Modified

August 27, 2026

Advisory Details (3)

Auto-updated Aug 25, 2026
Patch available. Sources: github, github_commit, github_release.
github_release Patch Available

v3.18.0

Patch available: baptisteArno/typebot.io v3.18.0

https://github.com/baptisteArno/typebot.io/releases/tag/v3.18.0
github_commit Patch Available

commit 06575dfcd461 (baptisteArno/typebot.io)

Patch available: baptisteArno/typebot.io v3.18.0 (contains commit 06575dfcd461)

https://github.com/baptisteArno/typebot.io/commit/06575dfcd461ba76071012869d4b1f4046f9a6b8
github Patch Available

Cross-workspace custom domain removal · Advisory · baptisteArno/typebot.io · GitHub

https://github.com/baptisteArno/typebot.io/security/advisories/GHSA-7h82-p425-wpmg

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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. 2026-08-27 17:32 UTCEG score recompute
  2. 2026-08-27 17:09 UTCEG score recompute
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-26 20:11 UTCEG score recompute
  5. 2026-08-26 14:46 UTCEPSS rescore
  6. 2026-08-25 22:29 UTCEG score recompute
  7. 2026-08-25 21:57 UTCEG score recompute
  8. 2026-08-25 21:54 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-62861?
CVE-2026-62861 is a medium vulnerability published on August 25, 2026. TypeBot is a chatbot builder tool. Prior to 3.18.0, any authenticated non-guest workspace member can remove another workspace's public custom domain and make typebots on that domain unavailable. The custom-domain delete handler in handleDeleteCustomDomain.ts authorizes a caller against a…
When was CVE-2026-62861 disclosed?
CVE-2026-62861 was first published in the National Vulnerability Database on August 25, 2026, with the most recent update 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-2026-62861 actively exploited?
CVE-2026-62861 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 67.4% of all scored CVEs.
What is the CVSS score of CVE-2026-62861?
CVE-2026-62861 has a CVSS v3 base score of 6.4 (NVD).
How do I remediate CVE-2026-62861?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-62861, 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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