CVE-2026-71436

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (48th 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

Also known asEUVD-2026-54241 (ENISA EUVD) · GHSA-2v8p-3f2j-5mp7 (GitHub Security Advisories)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • 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
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
39
EG Risk 39/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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: 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
48th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source
EG Likelihood
0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track 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). 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; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

August 6, 2026

Last Modified

October 24, 2026

Advisory Details (6)

Auto-updated Aug 6, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)

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 pull request 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(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatdevspaces/code-rhel9:17891457412026-09-17redhat
npmmermaid @ 10.9.8 (fixes >= 10.6.0, < 10.9.8)—ghsa
npmmermaid @ 11.16.1 (fixes >= 11.0.0-alpha.1, < 11.16.1)—ghsa

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 7× in last 7d / 35× 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 its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS → 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 164 rows 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. None are among the latest 100 rows. The 64 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  3. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  4. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  5. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  6. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  7. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.6% · 48th percentile
  8. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  11. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  12. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  13. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  14. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-2v8p-3f2j-5mp7 · GitHub severity MODERATE
  15. 2026-11-01 07:39 UTCEchelonGraph re-scored
  16. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  17. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  18. 2026-10-29 16:58 UTCEchelonGraph re-scored
  19. 2026-10-29 16:58 UTCVendor advisory
  20. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  21. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  22. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  23. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  24. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  25. 2026-10-25 14:07 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  2. 2026-10-24 15:29 UTCVendor advisory
  3. 2026-10-23 21:32 UTCEchelonGraph re-scored
  4. 2026-10-23 21:32 UTCVendor advisory
  5. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  6. 2026-10-22 19:24 UTCEchelonGraph re-scored
  7. 2026-10-22 19:24 UTCVendor advisory
  8. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  9. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
  10. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  11. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  12. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-10-18 03:17 UTCEchelonGraph re-scored
  14. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  15. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  16. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  18. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  19. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  20. 2026-10-12 15:42 UTCEchelonGraph re-scored
  21. 2026-10-11 19:28 UTCEchelonGraph re-scored
  22. 2026-10-11 16:43 UTCEchelonGraph re-scored
  23. 2026-10-11 14:04 UTCEchelonGraph re-scored
  24. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  26. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  27. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  28. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  29. 2026-10-06 23:23 UTCEchelonGraph re-scored
  30. 2026-10-06 23:23 UTCVendor advisory
  31. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  32. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  33. 2026-10-05 08:22 UTCEchelonGraph re-scored
  34. 2026-10-05 08:22 UTCVendor advisory
  35. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  36. 2026-10-04 05:48 UTCEchelonGraph re-scored
  37. 2026-10-04 05:48 UTCVendor advisory
  38. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  39. 2026-10-02 09:38 UTCEchelonGraph re-scored
  40. 2026-10-02 09:38 UTCVendor advisory
  41. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  42. 2026-09-30 23:00 UTCEchelonGraph re-scored
  43. 2026-09-30 23:00 UTCVendor advisory
  44. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  45. 2026-09-29 05:53 UTCEchelonGraph re-scored
  46. 2026-09-29 05:53 UTCVendor advisory
  47. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  48. 2026-09-27 17:28 UTCEchelonGraph re-scored
  49. 2026-09-27 17:28 UTCVendor advisory
  50. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  51. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  52. 2026-09-25 04:21 UTCEchelonGraph re-scored
  53. 2026-09-25 04:21 UTCVendor advisory
  54. 2026-09-23 23:38 UTCEchelonGraph re-scored
  55. 2026-09-23 23:38 UTCVendor advisory
  56. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  57. 2026-09-22 23:57 UTCEchelonGraph re-scored
  58. 2026-09-22 23:57 UTCVendor advisory
  59. 2026-09-22 01:01 UTCEchelonGraph re-scored
  60. 2026-09-22 01:01 UTCVendor advisory
  61. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  62. 2026-09-20 22:51 UTCEchelonGraph re-scored
  63. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  64. 2026-09-19 23:14 UTCEchelonGraph re-scored
  65. 2026-09-18 23:43 UTCEchelonGraph re-scored
  66. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  67. 2026-09-18 00:57 UTCEchelonGraph re-scored
  68. 2026-09-17 01:44 UTCEchelonGraph re-scored
  69. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  70. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  71. 2026-09-16 02:58 UTCEchelonGraph re-scored
  72. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  73. 2026-09-13 22:10 UTCEchelonGraph re-scored
  74. 2026-09-12 23:23 UTCEchelonGraph re-scored
  75. 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.4% · 34th percentile

Frequently asked(5)

What is CVE-2026-71436?
CVE-2026-71436 is a medium-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-71436 published?
The CVE record for CVE-2026-71436 was published on August 6, 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 October 24, 2026; the record at its source may have been updated since.
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 (48th 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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