CVE-2026-57584

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 57% 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
Elevated
8.7EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.7Exploit: Elevated riskExposed: 0

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

Phalcon is a high-performance, full-stack PHP framework. Prior to 5.15.0, every Phalcon MVC application built with a default router registers a built-in route whose compiled PCRE pattern contains the nested quantifier (/.), and the same construct is produced by the /:params placeholder and the CLI router. Phalcon\Mvc\Router::handle() matches this pattern against the attacker-controlled request URI on every request, so a crafted path such as one containing repeated slashes followed by decoded newlines can trigger catastrophic backtracking and cause CPU exhaustion or route-matching failure. This issue is fixed in version 5.15.0.

CVSS v3
8.7
EG Score
8.7(medium)
EG Risk
70(Attend)
EG Risk 70/100SSVC: 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
Severity87% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 13, 2026

Advisory Details (4)

Auto-updated Jul 10, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available

Catastrophic backtracking (ReDoS) in the default Phalcon Router route lead to remote unauthenticated DoS · Advisory · phalcon/cphalcon · GitHub

https://github.com/phalcon/cphalcon/security/advisories/GHSA-x7rj-f32v-7jjg
github_release Patch Available

v5.15.0

Patch available: phalcon/cphalcon v5.15.0

https://github.com/phalcon/cphalcon/releases/tag/v5.15.0
github_commit

commit fa798e919cb2 (phalcon/cphalcon)

Fix landed in phalcon/cphalcon commit fa798e919cb2 — awaiting tagged release

https://github.com/phalcon/cphalcon/commit/fa798e919cb2c487062bb9899ad6fc2b673b3a67
github_commit

commit 14ba22d389d5 (phalcon/cphalcon)

Fix landed in phalcon/cphalcon commit 14ba22d389d5 — awaiting tagged release

https://github.com/phalcon/cphalcon/commit/14ba22d389d5ca620bb9d5207205f836ef1224f2

Vendor Advisories for CVE-2026-57584(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
phalcon/cphalcon5.10.0 ... v5.8.0 (96 versions)5.15.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 39× 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.

Showing the most recent 100 of 116 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
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  1. 2026-08-28 21:42 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2026-57584?
CVE-2026-57584 is a high vulnerability published on July 10, 2026. Phalcon is a high-performance, full-stack PHP framework. Prior to 5.15.0, every Phalcon MVC application built with a default router registers a built-in route whose compiled PCRE pattern contains the nested quantifier (/.), and the same construct is produced by the /:params placeholder and the CLI…
When was CVE-2026-57584 disclosed?
CVE-2026-57584 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57584 actively exploited?
CVE-2026-57584 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.6% of all scored CVEs.
What is the CVSS score of CVE-2026-57584?
CVE-2026-57584 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2026-57584?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-57584, 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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