CVE-2026-73086

HIGHPre-NVD 7.47.4
EchelonGraph scoreMEDIUM confidence

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

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. A secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — Patch released this week

Also known asEUVD-2026-56554 (ENISA EUVD) · GHSA-xwg4-73v4-xw9w (GitHub Security Advisories)Source: ENISA EUVD

7.4EG
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: 0.3%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 33/100

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)
Severity74% × 45%
Impact severity (EG Severity): CVSS 7.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
22nd
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 (7.4): severity, escalated by confirmed exploitation. This CVE's 7.4 is its impact severity (EG Severity), not escalated.

EG Severity
7.4 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% 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; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade 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; 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). 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.

The score's inputs: 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

August 11, 2026

Last Modified

October 24, 2026

Advisory Details (6)

Auto-updated Aug 12, 2026
Patch available. Sources: github_commit, github_release, github.
GitHub advisoryMentions a patch (unverified)

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

Patch Availability(32)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhoai/odh-mod-arch-gen-ai-rhel9:17930018962026-10-29redhat
redhatodf4/odf-console-rhel9:17931268292026-10-29redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17918534322026-10-21redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17918609182026-10-19redhat
redhatrhtas/rekor-search-ui-rhel9:17915343392026-10-15redhat
redhatcluster-observability-operator/prometheus-rhel9:17908579222026-10-01redhat
redhatforeman-0:3.18.0.14-1.el9sat2026-10-01redhat
redhatquay/quay-rhel9:17906902982026-10-01redhat
redhatautomation-platform-ui-0:2.6.14-1.el9ap2026-09-23redhat
redhatrhtas/rekor-search-ui-rhel9:17897258182026-09-23redhat
redhatansible-automation-platform-26/gateway-rhel9:17896664722026-09-23redhat
redhatquay/quay-rhel8:17885938432026-09-22redhat
redhatquay/quay-rhel9:17895637532026-09-21redhat
redhatrhdh/rhdh-hub-rhel9:17895542852026-09-21redhat
redhatsatellite/iop-advisor-frontend-rhel9:17896595652026-09-17redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609832026-09-17redhat
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-rhel9:17882609412026-09-03redhat
redhatquay/quay-rhel8:17881917552026-09-03redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17883222432026-09-03redhat
redhatopenshift4/ose-console-rhel9:17877376952026-09-01redhat
redhatopenshift4/ose-console-rhel9:17875905232026-09-01redhat
redhatdevspaces/code-rhel9:17877627932026-09-01redhat
redhatrhacm2/console-rhel9:17876870622026-08-26redhat
redhatrhacm2/console-rhel9:17873392482026-08-26redhat
redhatrhacm2/console-rhel9:17873351052026-08-26redhat
redhatrhacm2/console-rhel9:17873392492026-08-26redhat
npmnanoid @ 3.3.12 (fixes < 3.3.12)—ghsa
npmnanoid @ 5.1.11 (fixes >= 4.0.0, < 5.1.11)—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

(7 across 4 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
node-mocha—
  • every version up to 9.1.4+ds1+~cs28.2.8-1: fixed in 9.1.4+ds1+~cs28.2.8-1
—
node-postcss8.4.20+~cs8.0.23-1 ... 8.5.9+~cs9.3.30-1 (19 versions)
  • every version on: no fix on record
—
Debian:13(2)
PackageVulnerable rangeFix by version rangeDependents
node-mocha—
  • every version up to 9.1.4+ds1+~cs28.2.8-1: fixed in 9.1.4+ds1+~cs28.2.8-1
—
node-postcss8.4.49+~cs9.2.32-1 ... 8.5.9+~cs9.3.30-1 (15 versions)
  • every version on: no fix on record
—
Debian:14(2)
PackageVulnerable rangeFix by version rangeDependents
node-mocha—
  • every version up to 9.1.4+ds1+~cs28.2.8-1: fixed in 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+~cs9.3.30-1
  • every version up to 8.5.14+~cs9.3.34-1: fixed in 8.5.14+~cs9.3.34-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
nanoid—
  • every version up to 3.3.12: fixed in 3.3.12
  • 4.0.0 up to 5.1.11: fixed in 5.1.11
—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 56× 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 100 of 235 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. None are among the latest 100 rows. The 135 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  2. 2026-11-01 07:39 UTCEG score recompute
  3. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-xwg4-73v4-xw9w · GitHub severity HIGH · GitHub CVSS 7.4
  4. 2026-11-01 05:43 UTCEG score recompute
  5. 2026-11-01 05:43 UTCVendor advisory
  6. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  7. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  8. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-10-25 14:06 UTCEG score recompute
  14. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  15. 2026-10-24 15:28 UTCVendor advisory
  16. 2026-10-23 19:31 UTCEG score recompute
  17. 2026-10-23 19:31 UTCVendor advisory
  18. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  19. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  20. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-10-20 22:17 UTCEG score recompute
  22. 2026-10-20 22:17 UTCVendor advisory
  23. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  24. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  25. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
Show 75 more
  1. 2026-10-18 03:15 UTCEG score recompute
  2. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  3. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  4. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  5. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  6. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  7. 2026-10-13 08:00 UTCEG score recompute
  8. 2026-10-13 08:00 UTCVendor advisory
  9. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  10. 2026-10-12 15:41 UTCEG score recompute
  11. 2026-10-11 19:26 UTCEG score recompute
  12. 2026-10-11 16:42 UTCEG score recompute
  13. 2026-10-11 14:02 UTCEG score recompute
  14. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  15. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  16. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  19. 2026-10-07 06:04 UTCVendor advisory
  20. 2026-10-06 17:50 UTCEG score recompute
  21. 2026-10-06 17:50 UTCVendor advisory
  22. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  23. 2026-10-05 17:58 UTCEG score recompute
  24. 2026-10-05 17:58 UTCVendor advisory
  25. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  26. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  27. 2026-10-04 22:44 UTCVendor advisory
  28. 2026-10-04 09:13 UTCVendor advisory
  29. 2026-10-03 20:57 UTCEG score recompute
  30. 2026-10-03 20:57 UTCVendor advisory
  31. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  32. 2026-10-02 22:25 UTCEG score recompute
  33. 2026-10-02 22:25 UTCVendor advisory
  34. 2026-10-02 08:41 UTCEG score recompute
  35. 2026-10-02 08:41 UTCVendor advisory
  36. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  37. 2026-10-01 10:28 UTCVendor advisory
  38. 2026-09-30 22:15 UTCEG score recompute
  39. 2026-09-30 22:15 UTCVendor advisory
  40. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  41. 2026-09-29 05:13 UTCEG score recompute
  42. 2026-09-29 05:13 UTCVendor advisory
  43. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  44. 2026-09-28 02:17 UTCEG score recompute
  45. 2026-09-28 02:17 UTCVendor advisory
  46. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  47. 2026-09-27 10:12 UTCEG score recompute
  48. 2026-09-27 10:12 UTCVendor advisory
  49. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 20th percentile
  50. 2026-09-25 03:53 UTCEG score recompute
  51. 2026-09-25 03:53 UTCVendor advisory
  52. 2026-09-24 12:31 UTCVendor advisory
  53. 2026-09-24 00:17 UTCEG score recompute
  54. 2026-09-24 00:17 UTCVendor advisory
  55. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  56. 2026-09-23 12:05 UTCVendor advisory
  57. 2026-09-22 23:52 UTCEG score recompute
  58. 2026-09-22 23:52 UTCVendor advisory
  59. 2026-09-22 11:15 UTCVendor advisory
  60. 2026-09-21 23:02 UTCEG score recompute
  61. 2026-09-21 23:02 UTCVendor advisory
  62. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  63. 2026-09-21 10:49 UTCEG score recompute
  64. 2026-09-21 10:49 UTCVendor advisory
  65. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-09-20 19:27 UTCVendor advisory
  67. 2026-09-20 05:23 UTCVendor advisory
  68. 2026-09-19 17:11 UTCEG score recompute
  69. 2026-09-19 17:11 UTCVendor advisory
  70. 2026-09-19 02:47 UTCEG score recompute
  71. 2026-09-19 02:47 UTCVendor advisory
  72. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  73. 2026-09-18 14:32 UTCVendor advisory
  74. 2026-09-18 02:02 UTCEG score recompute
  75. 2026-09-18 02:02 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-73086?
CVE-2026-73086 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-73086 published?
The CVE record for CVE-2026-73086 was published on August 11, 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-2026-73086 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 (22nd 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-73086

Explore →

Is Your Infrastructure Affected by CVE-2026-73086?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.