CVE-2026-62253

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (34th percentile of EPSS-scored CVEs). 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
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 9.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Homer is open source telecom observability software. Prior to version 11.0.283, both JWT middleware functions (JWTMiddleware and JWTMiddlewareV4) immediately return next(c) when jwtSecret == "". The JWT secret defaults to an empty string. On a default installation, all protected API endpoints under /api/v1, /api/v3, and /api/v4 are completely unauthenticated. Version 11.0.283 patches the issue.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
75
EG Risk 75/100CISA 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

October 7, 2026

Last Modified

October 10, 2026

Advisory Details (4)

Auto-updated Oct 10, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)🟡 PoC Available

Complete Authentication Bypass When coordinator.jwt.secret Is Empty (Default) · Advisory · sipcapture/homer · GitHub

https://github.com/sipcapture/homer/security/advisories/GHSA-rqcc-94gv-wjm9
github_release Patch Available

11.0.283

Patch available: sipcapture/homer 11.0.283

https://github.com/sipcapture/homer/releases/tag/11.0.283
github_pr

fix(security): enforce JWT when secret empty (GHSA-rqcc-94gv-wjm9)

Fix merged in sipcapture/homer PR #839 on 2026-06-25 — awaiting tagged release

https://github.com/sipcapture/homer/pull/839
github_commit

commit 5e90809657c9 (sipcapture/homer)

Fix landed in sipcapture/homer commit 5e90809657c9 — awaiting tagged release

https://github.com/sipcapture/homer/commit/5e90809657c9df321db191a69c6050f873f5646b

Vendor Advisories for CVE-2026-62253(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)
Go(1)
PackageVulnerable rangeFix by version rangeDependents
github.com/sipcapture/homer-app—
  • every version up to 0.0.0-20260625093330-5e90809657c9: fixed in 0.0.0-20260625093330-5e90809657c9
—

Weakness Classification(1)

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. 2026-10-10 03:22 UTCEG score recompute
  2. 2026-10-10 02:40 UTCEG score recompute
  3. 2026-10-09 23:40 UTCEG score recompute
  4. 2026-10-09 20:07 UTCEPSS rescore
  5. 2026-10-08 19:45 UTCEG score recompute
  6. 2026-10-08 17:13 UTCEPSS rescore
  7. 2026-10-07 17:37 UTCEG score recompute
  8. 2026-10-07 16:26 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-62253?
CVE-2026-62253 is a critical vulnerability published on October 7, 2026. Homer is open source telecom observability software. Prior to version 11.0.283, both JWT middleware functions (JWTMiddleware and JWTMiddlewareV4) immediately return next(c) when jwtSecret == "". The JWT secret defaults to an empty string. On a default installation, all protected API endpoints under…
When was CVE-2026-62253 disclosed?
CVE-2026-62253 was first published on October 7, 2026, with the most recent update on October 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-62253 actively exploited?
CVE-2026-62253 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-62253?
CVE-2026-62253 has a CVSS base score of 9.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-62253?
A fix for CVE-2026-62253 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-62253 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-62253

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Is Your Infrastructure Affected by CVE-2026-62253?

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