CVE-2026-61828

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 99% 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
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%CVSS: 8.5Exploit: None knownExposed: 0

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

Nixpkgs is a collection of software packages that can be installed with the Nix package manager. Prior to the 25.11 and 26.05 channel fixes, the NixOS module for MySQL services.mysql initializes the MySQL database in a way that allows local users, such as unprivileged web or CGI processes on the same host, to log in as the root user without a password when the service is used with mysql or percona-server. This issue is fixed in the 25.11 and 26.05.

CVSS v3
8.5
EG Score
8.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity85% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (7)

Auto-updated Jul 15, 2026
Patch available. Sources: github_commit, github_pr, github.
github Patch Available

`services.mysql` is configured with insecure authentication by default when used with `mysql` or `percona-server` · Advisory · NixOS/nixpkgs · GitHub

https://github.com/NixOS/nixpkgs/security/advisories/GHSA-6qxx-6rg8-c4p8
github_pr

[Backport release-25.11] nixos/mysql: fix default MySQL/Percona Server insecure authentication

Fix merged in NixOS/nixpkgs PR #534484 on 2026-06-23 — awaiting tagged release

https://github.com/NixOS/nixpkgs/pull/534484
github_pr

[Backport release-26.05] nixos/mysql: fix default MySQL/Percona Server insecure authentication

Fix merged in NixOS/nixpkgs PR #534482 on 2026-06-23 — awaiting tagged release

https://github.com/NixOS/nixpkgs/pull/534482
github_pr

nixos/mysql: fix default MySQL/Percona Server insecure authentication

Fix merged in NixOS/nixpkgs PR #534254 on 2026-06-22 — awaiting tagged release

https://github.com/NixOS/nixpkgs/pull/534254
github_commit

commit f8ee41468a7a (NixOS/nixpkgs)

Fix landed in NixOS/nixpkgs commit f8ee41468a7a — awaiting tagged release

https://github.com/NixOS/nixpkgs/commit/f8ee41468a7a8f9ed3a8cc7d017151c2ca6f90b5
github_commit

commit 4aed47116a87 (NixOS/nixpkgs)

Fix landed in NixOS/nixpkgs commit 4aed47116a87 — awaiting tagged release

https://github.com/NixOS/nixpkgs/commit/4aed47116a8734922763cd8f477467b0a0bcd6d7
github_commit

commit 3f68d7ad2a68 (NixOS/nixpkgs)

Fix landed in NixOS/nixpkgs commit 3f68d7ad2a68 — awaiting tagged release

https://github.com/NixOS/nixpkgs/commit/3f68d7ad2a6865ff8b4910d89f173d7258bad8dd

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 13× 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. 2026-07-26 11:36 UTCEG score recompute
  2. 2026-07-24 14:18 UTCEPSS rescore
  3. 2026-07-24 14:18 UTCEPSS rescore
  4. 2026-07-23 14:18 UTCEPSS rescore
  5. 2026-07-23 14:18 UTCEPSS rescore
  6. 2026-07-23 03:21 UTCEG score recompute
  7. 2026-07-22 14:08 UTCEPSS rescore
  8. 2026-07-22 14:08 UTCEPSS rescore
  9. 2026-07-20 17:08 UTCEPSS rescore
  10. 2026-07-19 14:31 UTCEPSS rescore
  11. 2026-07-16 17:03 UTCEPSS rescore
  12. 2026-07-15 15:20 UTCEG score recompute
  13. 2026-07-15 15:19 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61828?
CVE-2026-61828 is a high vulnerability published on July 15, 2026. Nixpkgs is a collection of software packages that can be installed with the Nix package manager. Prior to the 25.11 and 26.05 channel fixes, the NixOS module for MySQL services.mysql initializes the MySQL database in a way that allows local users, such as unprivileged web or CGI processes on the…
When was CVE-2026-61828 disclosed?
CVE-2026-61828 was first published in the National Vulnerability Database on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61828 actively exploited?
CVE-2026-61828 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 98.7% of all scored CVEs.
What is the CVSS score of CVE-2026-61828?
CVE-2026-61828 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-61828?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61828, 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.

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