CVE-2026-61828

HIGHPre-NVD 8.58.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (3rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
8.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.5Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

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
8.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

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 (value × EchelonGraph’s weight)
Severity85% × 45%
The EG Score, 8.5 of 10.
Exploitation0.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
3rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 15, 2026

Last Modified

July 15, 2026

Advisory Details (7)

Auto-updated Jul 15, 2026
Fix named in the CVE record. Sources: github_commit, github_pr, github.
GitHub advisoryMentions a patch (unverified)

`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 pull request

[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 pull request

[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 pull request

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 11× in last 7d / 30× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 117 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 18 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  2. 2026-10-13 13:17 UTCEG score recompute
  3. 2026-10-12 15:50 UTCEG score recompute
  4. 2026-10-11 19:34 UTCEG score recompute
  5. 2026-10-11 16:49 UTCEG score recompute
  6. 2026-10-11 14:11 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  12. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  13. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  14. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  15. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  16. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  17. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  18. 2026-10-01 12:41 UTCEG score recompute
  19. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  20. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  21. 2026-09-28 08:45 UTCEG score recompute
  22. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 3rd percentile
  23. 2026-09-24 08:51 UTCEG score recompute
  24. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  25. 2026-09-23 03:17 UTCEG score recompute
Show 74 more
  1. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  2. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  3. 2026-09-18 04:45 UTCEG score recompute
  4. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  5. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  6. 2026-09-13 23:12 UTCEG score recompute
  7. 2026-09-11 21:46 UTCEG score recompute
  8. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  9. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  10. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  11. 2026-09-08 00:54 UTCEG score recompute
  12. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  13. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  14. 2026-09-05 20:51 UTCEG score recompute
  15. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  16. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  17. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  18. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  19. 2026-08-31 06:55 UTCEG score recompute
  20. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  21. 2026-08-30 03:52 UTCEG score recompute
  22. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  23. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  24. 2026-08-28 01:52 UTCEG score recompute
  25. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  26. 2026-08-26 23:08 UTCEG score recompute
  27. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  28. 2026-08-26 02:41 UTCEG score recompute
  29. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 4th percentile
  30. 2026-08-25 00:19 UTCEG score recompute
  31. 2026-08-24 11:08 UTCEG score recompute
  32. 2026-08-23 08:46 UTCEG score recompute
  33. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  34. 2026-08-22 06:20 UTCEG score recompute
  35. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  36. 2026-08-21 03:48 UTCEG score recompute
  37. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  38. 2026-08-20 00:16 UTCEG score recompute
  39. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  40. 2026-08-18 20:00 UTCEG score recompute
  41. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-08-18 02:34 UTCEG score recompute
  43. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  44. 2026-08-17 00:05 UTCEG score recompute
  45. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  46. 2026-08-16 10:54 UTCEG score recompute
  47. 2026-08-15 08:33 UTCEG score recompute
  48. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  49. 2026-08-14 06:12 UTCEG score recompute
  50. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  51. 2026-08-12 14:40 UTCEG score recompute
  52. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  53. 2026-08-11 12:19 UTCEG score recompute
  54. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  55. 2026-08-09 20:46 UTCEG score recompute
  56. 2026-08-09 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  57. 2026-08-08 18:26 UTCEG score recompute
  58. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  59. 2026-08-08 05:15 UTCEG score recompute
  60. 2026-08-07 02:53 UTCEG score recompute
  61. 2026-08-06 13:47 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  62. 2026-08-06 00:32 UTCEG score recompute
  63. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  64. 2026-08-04 21:59 UTCEG score recompute
  65. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  66. 2026-08-04 10:39 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  67. 2026-08-03 19:38 UTCEG score recompute
  68. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  69. 2026-08-02 03:59 UTCEG score recompute
  70. 2026-08-02 02:27 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  71. 2026-08-01 14:49 UTCEG score recompute
  72. 2026-08-01 04:16 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  73. 2026-07-30 23:12 UTCEG score recompute
  74. 2026-07-30 16:28 UTCEPSS rescoreEPSS 0.1% · 1st percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-61828?
CVE-2026-61828 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-61828 published?
The CVE record for CVE-2026-61828 was published on July 15, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 15, 2026; the record at its source may have been updated since.
Is CVE-2026-61828 actively exploited?
CVE-2026-61828 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (3rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-61828?
CVE-2026-61828 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-2026-61828?
The CVE record for CVE-2026-61828 names the fix: "This issue is fixed in the 25.11 and 26.05."

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