CVE-2026-100618

HIGHPre-NVD 8.58.5—
EchelonGraph scoreHIGH confidence

Score 8.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-26. A secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Capgo (capgo.app) is affected by an authorization flaw in the app icon update path. The PUT /app/:id endpoint accepts a user-controlled icon value, normalizes it, and stores it in public.apps.icon_url without verifying that the image path belongs to the target app's own image namespace (e.g. org/{owner_org}/{app_id}/...). Updating apps.icon_url fires the on_app_update trigger, whose worker reads record.icon_url and calls cleanStoredImageMetadata(), which runs with service-role credentials (supabaseAdmin()) and downloads and re-uploads the referenced storage object with upsert: true. As a result, an authenticated holder of an app-limited write API key can cause the privileged worker to rewrite an out-of-scope private image object (for example an organization logo) that the key cannot read or write directly under Supabase Storage RLS. All versions are affected; no patched version was available at the time of the advisory.

CVSS v3
8.5
EG Score
8.5HIGHhigh confidence
EG Risk
54
EG Risk 54/100CISA SSVC

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
Severity85% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
9th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 26, 2026

Last Modified

September 30, 2026

Advisory Details (2)

Auto-updated Sep 26, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Capgo App Icon Update Privilege Escalation via Service-Role Worker | Advisories | VulnCheck

https://www.vulncheck.com/advisories/capgo-app-icon-update-privilege-escalation-via-service-role-worker
github Patch Available🟡 PoC Available

App-limited API keys can trigger service-role rewrites of out-of-scope private image objects via app icon metadata cleanup · Advisory · Cap-go/capgo.app · GitHub

https://github.com/Cap-go/capgo.app/security/advisories/GHSA-669c-gwrr-hc53

Vendor Advisories for CVE-2026-100618(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 33× in last 7d / 38× 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. 2026-10-04 08:04 UTCGHSA enrichment
  2. 2026-10-03 19:53 UTCEG score recompute
  3. 2026-10-03 19:53 UTCGHSA enrichment
  4. 2026-10-03 14:25 UTCEPSS rescore
  5. 2026-10-03 07:42 UTCGHSA enrichment
  6. 2026-10-02 19:26 UTCEG score recompute
  7. 2026-10-02 19:26 UTCGHSA enrichment
  8. 2026-10-02 07:14 UTCEG score recompute
  9. 2026-10-02 07:14 UTCGHSA enrichment
  10. 2026-10-01 19:49 UTCEPSS rescore
  11. 2026-10-01 19:03 UTCGHSA enrichment
  12. 2026-10-01 06:52 UTCGHSA enrichment
  13. 2026-09-30 18:41 UTCEG score recompute
  14. 2026-09-30 18:41 UTCGHSA enrichment
  15. 2026-09-30 17:38 UTCEG score recompute
  16. 2026-09-30 17:38 UTCGHSA enrichment
  17. 2026-09-30 15:02 UTCEPSS rescore
  18. 2026-09-30 11:59 UTCGHSA enrichment
  19. 2026-09-29 23:48 UTCEG score recompute
  20. 2026-09-29 23:48 UTCGHSA enrichment
  21. 2026-09-29 15:20 UTCEPSS rescore
  22. 2026-09-29 09:24 UTCEG score recompute
  23. 2026-09-29 09:24 UTCGHSA enrichment
  24. 2026-09-28 21:13 UTCEG score recompute
  25. 2026-09-28 21:13 UTCGHSA enrichment
Show 13 more
  1. 2026-09-28 19:20 UTCEG score recompute
  2. 2026-09-28 19:19 UTCGHSA enrichment
  3. 2026-09-28 15:21 UTCEG score recompute
  4. 2026-09-28 15:21 UTCGHSA enrichment
  5. 2026-09-28 13:50 UTCEPSS rescore
  6. 2026-09-28 03:10 UTCGHSA enrichment
  7. 2026-09-27 14:58 UTCEG score recompute
  8. 2026-09-27 14:58 UTCGHSA enrichment
  9. 2026-09-27 02:46 UTCEG score recompute
  10. 2026-09-27 02:46 UTCGHSA enrichment
  11. 2026-09-26 14:35 UTCEG score recompute
  12. 2026-09-26 13:40 UTCEG score recompute
  13. 2026-09-26 13:30 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-100618?
CVE-2026-100618 is a high vulnerability published on September 26, 2026. Capgo (capgo.app) is affected by an authorization flaw in the app icon update path. The PUT /app/:id endpoint accepts a user-controlled icon value, normalizes it, and stores it in public.apps.iconurl without verifying that the image path belongs to the target app's own image namespace (e.g.…
When was CVE-2026-100618 disclosed?
CVE-2026-100618 was first published on September 26, 2026, with the most recent update on September 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-100618 actively exploited?
CVE-2026-100618 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-100618?
CVE-2026-100618 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-100618?
A fix for CVE-2026-100618 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-100618 are linked in the Vendor Advisories panel on this page.

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