CVE-2026-73086

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th 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 — Patch released this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

nanoid is a secure, URL-friendly, unique string ID generator for JavaScript. Prior to versions 3.3.12 and 5.1.11, the nanoid(size) function in index.js and index.cjs coerces the user-influenced size parameter to a signed 32-bit integer, allowing a value of 2147483648 to become -2147483648 and corrupt the process-wide CSPRNG poolOffset in fillPool(), which causes subsequent session tokens, CSRF tokens, API keys, and unique identifiers to become the deterministic string "uuuuuuuuuuuuuuuuuuuuu" until the process restarts. This issue is fixed in versions 3.3.12 and 5.1.11.

CVSS v3
7.4
EG Score
7.4HIGHmedium confidence
EG Risk
33
EG Risk 33/100CISA 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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 11, 2026

Last Modified

September 9, 2026

Advisory Details (6)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available

Integer Overflow or Wraparound in nanoid · Advisory · ai/nanoid · GitHub

https://github.com/ai/nanoid/security/advisories/GHSA-xwg4-73v4-xw9w
github_release Patch Available

5.1.11

Patch available: ai/nanoid 5.1.11

https://github.com/ai/nanoid/releases/tag/5.1.11
github_release Patch Available

3.3.12

Patch available: ai/nanoid 3.3.12

https://github.com/ai/nanoid/releases/tag/3.3.12
github_commit Patch Available

commit b0036ed60dc9 (ai/nanoid)

Patch available: ai/nanoid 3.3.13 (contains commit b0036ed60dc9)

https://github.com/ai/nanoid/commit/b0036ed60dc9facd7f1191a50dfb3076500202ac
github_commit Patch Available

commit 821dfed7b5db (ai/nanoid)

Patch available: ai/nanoid 3.3.12 (contains commit 821dfed7b5db)

https://github.com/ai/nanoid/commit/821dfed7b5db7f88e92f56c60eef32c8135077c3
github_commit Patch Available

commit 7087969281ca (ai/nanoid)

Patch available: ai/nanoid 5.1.11 (contains commit 7087969281ca)

https://github.com/ai/nanoid/commit/7087969281cab8ba8ae3babf1894e819068b3bb4

Vendor Advisories for CVE-2026-73086(20)

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

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatautomation-platform-ui-0:2.6.14-1.el9ap2026-09-23redhat
redhatansible-automation-platform-26/gateway-rhel9:17896664722026-09-23redhat
redhatrhtas/rekor-search-ui-rhel9:17897258182026-09-23redhat
redhatquay/quay-rhel8:17885938432026-09-22redhat
redhatrhdh/rhdh-hub-rhel9:17895542852026-09-21redhat
redhatquay/quay-rhel9:17895637532026-09-21redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609832026-09-17redhat
redhatsatellite/iop-advisor-frontend-rhel9:17896595652026-09-17redhat
redhatdevspaces/openvsx-rhel9:17891442692026-09-17redhat
redhatquay/quay-rhel8:17885943762026-09-10redhat
redhatquay/quay-rhel8:17885618412026-09-09redhat
redhatquay/quay-rhel8:17885955742026-09-08redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17883222432026-09-03redhat
redhatquay/quay-rhel8:17881917552026-09-03redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17882609412026-09-03redhat
redhatdevspaces/code-rhel9:17877627932026-09-01redhat
redhatopenshift4/ose-console-rhel9:17875905232026-09-01redhat
redhatopenshift4/ose-console-rhel9:17877376952026-09-01redhat
redhatrhacm2/console-rhel9:17873392482026-08-26redhat
redhatrhacm2/console-rhel9:17873351052026-08-26redhat
redhatrhacm2/console-rhel9:17873392492026-08-26redhat
redhatrhacm2/console-rhel9:17876870622026-08-26redhat
redhatopenshift4/ose-console-rhel9:17871583412026-08-25redhat
redhatmulticluster-engine/console-mce-rhel9:17872642502026-08-25redhat
redhatmulticluster-engine/console-mce-rhel9:17872590482026-08-25redhat
redhatmulticluster-engine/console-mce-rhel9:17870793592026-08-25redhat
redhatmulticluster-engine/console-mce-rhel9:17866688562026-08-25redhat
redhatrhacm2/console-rhel9:17869083612026-08-19redhat
redhatmulticluster-engine/console-mce-rhel9:17869119772026-08-19redhat
redhatansible-automation-platform/automation-portal:17870471882026-08-18redhat

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

(7 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFixed inDependents
node-mocha—9.1.4+ds1+~cs28.2.8-1—
node-postcss8.4.20+~cs8.0.23-1 ... 8.5.9+~cs9.3.30-1 (18 versions)——
Debian:13(2)
PackageVulnerable rangeFixed inDependents
node-mocha—9.1.4+ds1+~cs28.2.8-1—
node-postcss8.4.49+~cs9.2.32-1 ... 8.5.9+~cs9.3.30-1 (14 versions)——
Debian:14(2)
PackageVulnerable rangeFixed inDependents
node-mocha—9.1.4+ds1+~cs28.2.8-1—
node-postcss8.4.49+~cs9.2.32-1, 8.5.12+~cs9.3.32-1, 8.5.6+~cs9.3.28-1, 8.5.8+~cs9.3.30-1, 8.5.9+~cs9.3.30-18.5.14+~cs9.3.34-1—
npm(1)
PackageVulnerable rangeFixed inDependents
nanoid—5.1.11—

Weakness Classification(1)

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

Additional Vendor Advisories

(18)

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 19× in last 7d / 97× 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 171 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-73086?
CVE-2026-73086 is a high vulnerability published on August 11, 2026. nanoid is a secure, URL-friendly, unique string ID generator for JavaScript. Prior to versions 3.3.12 and 5.1.11, the nanoid(size) function in index.js and index.cjs coerces the user-influenced size parameter to a signed 32-bit integer, allowing a value of 2147483648 to become -2147483648 and…
When was CVE-2026-73086 disclosed?
CVE-2026-73086 was first published on August 11, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73086 actively exploited?
CVE-2026-73086 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73086?
CVE-2026-73086 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73086?
A fix for CVE-2026-73086 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73086 are linked in the Vendor Advisories panel on this page.

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