CVE-2026-73089

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.7% (49th 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct (queries, context) result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker who can influence repeated browserslist() query values, including valid since -- queries, to bypass the caller-controlled BROWSERSLIST_DISABLE_CACHE mitigation and cause linear memory growth followed by an out-of-memory process crash. This issue is fixed in version 4.28.7.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100CISA 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
Severity75% × 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
0.7%
EPSS %ILE
49th
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 11, 2026

Last Modified

September 9, 2026

Advisory Details (3)

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

Unbounded memory growth (no cache eviction) via distinct query results, leading to eventual OOM · Advisory · browserslist/browserslist · GitHub

https://github.com/browserslist/browserslist/security/advisories/GHSA-c83g-rgw3-j3cx
github_release Patch Available

4.28.7

Patch available: browserslist/browserslist 4.28.7

https://github.com/browserslist/browserslist/releases/tag/4.28.7
github_commit Patch Available

commit f2931a3ff2a3 (browserslist/browserslist)

Patch available: browserslist/browserslist 4.28.7 (contains commit f2931a3ff2a3)

https://github.com/browserslist/browserslist/commit/f2931a3ff2a3a31abf84ef01a7400b270aad6405

Vendor Advisories for CVE-2026-73089(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
redhatrhtas/rekor-search-ui-rhel9:17897258182026-09-23redhat
redhatquay/quay-rhel8:17885938432026-09-22redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609832026-09-17redhat
redhatsatellite/iop-advisor-frontend-rhel9:17896595652026-09-17redhat
redhatrhmtc/openshift-migration-ui-rhel8:17895463732026-09-17redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609692026-09-17redhat
redhatdevspaces/openvsx-rhel9:17891442692026-09-17redhat
redhatrhem/flightctl-ui-rhel10:17894881112026-09-16redhat
redhatrhem/flightctl-ui-rhel10:17894861812026-09-16redhat
redhatrhem/flightctl-ui-ocp-rhel9:17894864462026-09-16redhat
redhatrhem/flightctl-ui-rhel9:17894867502026-09-16redhat
redhatquay/quay-rhel8:17885943762026-09-10redhat
redhatquay/quay-rhel8:17885618412026-09-09redhat
redhatquay/quay-rhel8:17885955742026-09-08redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17883121572026-09-08redhat
redhatquay/quay-rhel8:17881917552026-09-03redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17882609412026-09-03redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17883222432026-09-03redhat
redhatopenshift4/nmstate-console-plugin-rhel9:17875903722026-09-01redhat
redhatopenshift4/nmstate-console-plugin-rhel9:17877448432026-09-01redhat
redhatopenshift-service-mesh/kiali-rhel9:17871656832026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870764952026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870921982026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870922552026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870771082026-08-25redhat
redhatansible-automation-platform/automation-portal:17870471142026-08-18redhat
redhatansible-automation-platform/automation-portal:17870471882026-08-18redhat
redhatdiscovery/discovery-ui-rhel9:17866348252026-08-13redhat
redhatgrafana12-4-main-12.4.8-0.1.1.hum12026-08-13redhat
redhatgrafana13-1-main-13.1.3-0.1.1.hum12026-08-13redhat

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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-browserslist4.21.10+~cs6.1.25-1 ... 4.28.7+~cs8.16.65-1 (16 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-browserslist4.25.0+~cs6.3.22-1 ... 4.28.7+~cs8.16.65-1 (8 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-browserslist4.25.0+~cs6.3.22-1 ... 4.28.2+~cs8.14.68-1 (7 versions)4.28.7+~cs8.16.65-1—
npm(1)
PackageVulnerable rangeFixed inDependents
browserslist—4.28.7—

Weakness Classification(1)

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

Additional Vendor Advisories

(11)

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 20× in last 7d / 102× 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 184 total refreshes for this CVE.

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

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

Same product

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Debian:12:node-browserslist

Frequently asked(5)

What is CVE-2026-73089?
CVE-2026-73089 is a high vulnerability published on August 11, 2026. Browserslist is a configuration tool for sharing target browsers and Node.js versions between front-end tools. Prior to 4.28.7, index.js retains every distinct (queries, context) result in cache and every parseQueries() AST in parseCache without a size cap, TTL, or eviction, allowing an attacker…
When was CVE-2026-73089 disclosed?
CVE-2026-73089 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-2026-73089 actively exploited?
CVE-2026-73089 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73089?
CVE-2026-73089 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73089?
A fix for CVE-2026-73089 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73089 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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