CVE-2026-34198

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 96% 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 weekElevated
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the TrustProxies middleware trusts all proxies ($proxies = '*'), accepting X-Forwarded-Host from any source. The TrustHosts middleware, intended to prevent host header attacks, has a circular caching dependency that prevents it from ever validating hosts. When a password reset is requested, the ResetPassword notification generates the reset URL using url(route(..., false)), which derives the host from the (spoofable) request. An unauthenticated attacker can trigger a password reset email containing a link pointing to an attacker-controlled domain, enabling token theft and account takeover. This issue is fixed in version 4.0.0-beta.471.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
3.7%
KEV
Not listed

Published

July 7, 2026

Last Modified

July 7, 2026

Advisory Details (4)

Auto-updated Jul 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_pr, github_commit, github_release.
github_release Patch Available

v4.0.0-beta.471

Patch available: coollabsio/coolify v4.0.0-beta.471

https://github.com/coollabsio/coolify/releases/tag/v4.0.0-beta.471
github_commit Patch Available

commit 98569e4edbfc (coollabsio/coolify)

Patch available: coollabsio/coolify v4.0.0-beta.471 (contains commit 98569e4edbfc)

https://github.com/coollabsio/coolify/commit/98569e4edbfc316877c9e0d27ea89fab3c49e3bd
github_pr Patch Available

fix: use server-side config for password reset URL generation

Patch available: coollabsio/coolify v4.0.0-beta.471 (PR #9193 merged 2026-03-28)

https://github.com/coollabsio/coolify/pull/9193
github Patch Available🟡 PoC Available

Password reset link poisoning via X-Forwarded-Host header spoofing · Advisory · coollabsio/coolify · GitHub

https://github.com/coollabsio/coolify/security/advisories/GHSA-cgj8-7m5q-x5gv

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 10× 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. 2026-07-11 11:26 UTCEG score recompute
  2. 2026-07-11 08:27 UTCEPSS rescore
  3. 2026-07-10 09:29 UTCEG score recompute
  4. 2026-07-09 19:10 UTCEPSS rescore
  5. 2026-07-09 07:29 UTCEG score recompute
  6. 2026-07-08 15:15 UTCEPSS rescore
  7. 2026-07-08 05:32 UTCEG score recompute
  8. 2026-07-07 13:46 UTCEPSS rescore
  9. 2026-07-07 03:33 UTCEG score recompute
  10. 2026-07-07 03:31 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-34198?
CVE-2026-34198 is a medium vulnerability published on July 7, 2026. Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, the TrustProxies middleware trusts all proxies ($proxies = '*'), accepting X-Forwarded-Host from any source. The TrustHosts middleware, intended to prevent host header…
When was CVE-2026-34198 disclosed?
CVE-2026-34198 was first published in the National Vulnerability Database on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34198 actively exploited?
CVE-2026-34198 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-34198?
CVE-2026-34198 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-34198?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34198, 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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