CVE-2026-49261

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 1.6%, top 26% 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, nvd
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.8Exploit: None knownExposed: 0

A fix is available — apply it.

MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with wsrep_notify_cmd enabled would execute shell commands embedded in the name of the joiner node. This is fixed in 10.6.27, 10.11.18, 11.4.12, 11.8.8, and 12.3.2. As a workaround, anyone who cannot upgrade now should disable wsrep_notify_cmd.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
60(Track)
EG Risk 60/100SSVC: 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
Severity98% × 45%
Exploitation2% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
2%
EPSS %ILE
74%
KEV
Not listed

Published

June 11, 2026

Last Modified

August 12, 2026

Advisory Details (13)

Auto-updated Sep 9, 2026
Patch available. Sources: redhat, github.
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:49522
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:33482
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:33481
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:33464
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:33412
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:33093
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:25145
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:25143
generic

[MDEV-39721] wsrep_notify_cmd should sanitize peer-supplied fields before shell substitution - Jira

https://jira.mariadb.org/browse/MDEV-39721
github Patch Available

unsafe parameter handing in `wsrep_notify_cmd` · Advisory · MariaDB/server · GitHub

https://github.com/MariaDB/server/security/advisories/GHSA-3p3m-4x7c-p4pw
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-49261
redhat

Affected: Red Hat Enterprise Linux 7",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-49261.json
redhat Patch Available

2487957 – (CVE-2026-49261) CVE-2026-49261 mariadb: MariaDB Server: Arbitrary code execution via wsrep_notify_cmd

Affected: Red Hat Enterprise Linux 10

https://bugzilla.redhat.com/show_bug.cgi?id=2487957

Vendor Advisories for CVE-2026-49261(10)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntumariadb-test-data (1:11.8.6-5ubuntu0.1) @ resolute2026-09-14ubuntu
redhatmariadb:10.11-9060020260804103117.rhel92026-08-12redhat
redhatmariadb:10.11-9040020260804103423.rhel92026-08-10redhat
redhatmariadb10.11-3:10.11.18-1.el10_02026-08-03redhat
redhatmariadb:10.11-9080020260612103452.rhel92026-06-30redhat
redhatmariadb:11.8-9080020260612104015.rhel92026-06-30redhat
redhatmariadb11.8-3:11.8.8-1.el10_22026-06-30redhat
redhatmariadb:10.11-8100020260616102001.489197e62026-06-30redhat
redhatmariadb10.11-3:10.11.18-1.el10_22026-06-29redhat
redhatmariadb11-8-main-11.8.8-1.hum12026-06-10redhat
redhatmariadb10-11-main-10.11.18-1.hum12026-06-10redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
mariadb1:10.11.11-0+deb12u1 ... 1:10.11.9-0+deb12u1 (21 versions)1:10.11.18-0+deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
mariadb1:11.8.2-1 ... 1:11.8.9+ds-1 (20 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
mariadb1:11.8.2-1 ... 1:11.8.6-6 (15 versions)1:11.8.8-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 52× 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 365 total refreshes for this CVE.

  1. 2026-09-16 05:15 UTCEPSS rescore
  2. 2026-09-14 08:15 UTCVendor advisory
  3. 2026-09-14 04:10 UTCEG score recompute
  4. 2026-09-14 04:10 UTCVendor advisory
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-10 09:35 UTCEPSS rescore
  8. 2026-09-08 22:01 UTCEPSS rescore
  9. 2026-09-07 16:01 UTCEPSS rescore
  10. 2026-09-06 13:47 UTCEPSS rescore
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-02 14:12 UTCEPSS rescore
  13. 2026-09-01 13:54 UTCEPSS rescore
  14. 2026-09-01 04:40 UTCEPSS rescore
  15. 2026-08-31 00:04 UTCEG score recompute
  16. 2026-08-31 00:04 UTCVendor advisory
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 01:22 UTCEPSS rescore
  19. 2026-08-28 21:41 UTCEPSS rescore
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 14:46 UTCEPSS rescore
  22. 2026-08-25 13:49 UTCEPSS rescore
  23. 2026-08-25 03:51 UTCVendor advisory
  24. 2026-08-25 00:01 UTCEG score recompute
  25. 2026-08-25 00:01 UTCVendor advisory
Show 75 more
  1. 2026-08-23 22:30 UTCVendor advisory
  2. 2026-08-23 18:24 UTCVendor advisory
  3. 2026-08-23 14:33 UTCVendor advisory
  4. 2026-08-23 10:42 UTCEG score recompute
  5. 2026-08-23 10:42 UTCVendor advisory
  6. 2026-08-23 00:19 UTCEPSS rescore
  7. 2026-08-21 23:49 UTCEPSS rescore
  8. 2026-08-21 23:34 UTCVendor advisory
  9. 2026-08-21 19:15 UTCVendor advisory
  10. 2026-08-21 14:32 UTCVendor advisory
  11. 2026-08-21 10:28 UTCVendor advisory
  12. 2026-08-21 06:37 UTCVendor advisory
  13. 2026-08-21 00:47 UTCEG score recompute
  14. 2026-08-21 00:47 UTCVendor advisory
  15. 2026-08-20 22:55 UTCEPSS rescore
  16. 2026-08-20 20:56 UTCVendor advisory
  17. 2026-08-20 17:06 UTCVendor advisory
  18. 2026-08-20 08:51 UTCEG score recompute
  19. 2026-08-20 08:51 UTCVendor advisory
  20. 2026-08-19 17:04 UTCEPSS rescore
  21. 2026-08-19 14:53 UTCEG score recompute
  22. 2026-08-19 14:53 UTCVendor advisory
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 14:31 UTCEG score recompute
  25. 2026-08-17 14:31 UTCVendor advisory
  26. 2026-08-17 13:47 UTCEPSS rescore
  27. 2026-08-17 10:36 UTCVendor advisory
  28. 2026-08-17 06:45 UTCVendor advisory
  29. 2026-08-17 02:55 UTCVendor advisory
  30. 2026-08-16 23:05 UTCVendor advisory
  31. 2026-08-16 15:14 UTCEG score recompute
  32. 2026-08-16 15:14 UTCVendor advisory
  33. 2026-08-16 14:56 UTCEPSS rescore
  34. 2026-08-16 11:23 UTCVendor advisory
  35. 2026-08-16 07:33 UTCVendor advisory
  36. 2026-08-16 03:40 UTCEG score recompute
  37. 2026-08-16 03:40 UTCVendor advisory
  38. 2026-08-16 02:14 UTCEPSS rescore
  39. 2026-08-15 23:50 UTCVendor advisory
  40. 2026-08-15 18:20 UTCVendor advisory
  41. 2026-08-15 14:30 UTCVendor advisory
  42. 2026-08-15 10:40 UTCVendor advisory
  43. 2026-08-15 05:58 UTCVendor advisory
  44. 2026-08-15 01:35 UTCEG score recompute
  45. 2026-08-15 01:35 UTCVendor advisory
  46. 2026-08-15 01:30 UTCEPSS rescore
  47. 2026-08-14 21:45 UTCVendor advisory
  48. 2026-08-14 17:55 UTCVendor advisory
  49. 2026-08-14 13:35 UTCVendor advisory
  50. 2026-08-14 09:45 UTCVendor advisory
  51. 2026-08-14 05:55 UTCVendor advisory
  52. 2026-08-14 02:04 UTCVendor advisory
  53. 2026-08-13 22:14 UTCEG score recompute
  54. 2026-08-13 22:14 UTCVendor advisory
  55. 2026-08-13 22:00 UTCEPSS rescore
  56. 2026-08-13 12:05 UTCVendor advisory
  57. 2026-08-13 07:54 UTCVendor advisory
  58. 2026-08-13 03:57 UTCVendor advisory
  59. 2026-08-13 00:07 UTCVendor advisory
  60. 2026-08-12 20:16 UTCVendor advisory
  61. 2026-08-12 16:26 UTCEG score recompute
  62. 2026-08-12 16:26 UTCVendor advisory
  63. 2026-08-12 13:51 UTCEPSS rescore
  64. 2026-08-12 12:36 UTCVendor advisory
  65. 2026-08-12 12:11 UTCVendor advisory
  66. 2026-08-12 11:00 UTCVendor advisory
  67. 2026-08-12 07:10 UTCVendor advisory
  68. 2026-08-12 01:38 UTCVendor advisory
  69. 2026-08-11 21:48 UTCVendor advisory
  70. 2026-08-11 17:58 UTCEG score recompute
  71. 2026-08-11 17:58 UTCVendor advisory
  72. 2026-08-11 13:23 UTCVendor advisory
  73. 2026-08-11 12:23 UTCVendor advisory
  74. 2026-08-11 11:17 UTCVendor advisory
  75. 2026-08-11 07:27 UTCVendor advisory

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-49261?
CVE-2026-49261 is a critical vulnerability published on June 11, 2026. MariaDB server is a community developed fork of MySQL server. Versions 10.6.1 through 10.6.26, 10.11.1 through 10.11.17, 11.4.1 through 11.4.11, 11.8.1 through 11.8.7, and 12.3.1 with wsrepnotifycmd enabled would execute shell commands embedded in the name of the joiner node. This is fixed in…
When was CVE-2026-49261 disclosed?
CVE-2026-49261 was first published in the National Vulnerability Database on June 11, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49261 actively exploited?
CVE-2026-49261 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 25.8% of all scored CVEs.
What is the CVSS score of CVE-2026-49261?
CVE-2026-49261 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-49261?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49261, 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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