CVE-2026-71436

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th 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
Trending — 3 sources updated this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 10.6.0 until 10.9.8 and 11.16.1, Mermaid XY Charts are vulnerable to an infinite loop denial of service in the setXAxisRangeData function when configuring an X-Axis with invalid parameters. Because each loop iteration appends an element to an array, this generally causes a RangeError to appear after a few seconds, but it may instead cause the page or JavaScript process to crash from memory exhaustion, depending on the environment. This issue is fixed in versions 10.9.8 and 11.16.1.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100CISA 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
Severity53% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
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
0.6%
EPSS %ILE
45th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

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

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

August 6, 2026

Last Modified

September 8, 2026

Advisory Details (6)

Auto-updated Aug 6, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available

Mermaid XY Charts are vulnerable to an infinite loop DoS · Advisory · mermaid-js/mermaid · GitHub

https://github.com/mermaid-js/mermaid/security/advisories/GHSA-2v8p-3f2j-5mp7
github_release Patch Available

v10.9.8

Patch available: mermaid-js/mermaid v10.9.8

https://github.com/mermaid-js/mermaid/releases/tag/v10.9.8
github_release Patch Available

[email protected]

Patch available: mermaid-js/mermaid [email protected]

https://github.com/mermaid-js/mermaid/releases/tag/[email protected]
github_pr Patch Available

Release Candidate 11.16.1

Patch available: mermaid-js/mermaid [email protected] (PR #8022 merged 2026-08-04)

https://github.com/mermaid-js/mermaid/pull/8022
github_commit Patch Available

commit ef60adc837d9 (mermaid-js/mermaid)

Patch available: mermaid-js/mermaid v10.9.8 (contains commit ef60adc837d9)

https://github.com/mermaid-js/mermaid/commit/ef60adc837d9d5107af21285f01e83dea309bd0a
github_commit Patch Available

commit 630aa7e5dd41 (mermaid-js/mermaid)

Patch available: mermaid-js/mermaid [email protected] (contains commit 630aa7e5dd41)

https://github.com/mermaid-js/mermaid/commit/630aa7e5dd417e1f56bff2a1ce8df2c5ad08d289

Vendor Advisories for CVE-2026-71436(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatdevspaces/code-rhel9:17891457412026-09-17redhat

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:11(1)
PackageVulnerable rangeFix by version rangeDependents
node-mermaid8.11.0+ds+~cs29.13.22-1 ... 9.2.2+~2.0.0-2 (15 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-mermaid8.11.0+ds+~cs29.13.22-1 ... 9.2.2+~2.0.0-2 (16 versions)
  • every version on: no fix on record
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
mermaid—
  • 10.6.0 up to 10.9.8: fixed in 10.9.8
  • 11.0.0-alpha.1 up to 11.16.1: fixed in 11.16.1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 15× 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 107 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-71436?
CVE-2026-71436 is a medium vulnerability published on August 6, 2026. Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts. From version 10.6.0 until 10.9.8 and 11.16.1, Mermaid XY Charts are vulnerable to an infinite loop denial of service in the setXAxisRangeData function when configuring an X-Axis with invalid…
When was CVE-2026-71436 disclosed?
CVE-2026-71436 was first published on August 6, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71436 actively exploited?
CVE-2026-71436 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (45th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71436?
CVE-2026-71436 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-71436?
A fix for CVE-2026-71436 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71436 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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