CVE-2026-73089

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-09-01. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-56600 (ENISA EUVD) · GHSA-c83g-rgw3-j3cx (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • 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 49/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 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
0.7%
EPSS %ILE
51st
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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 11, 2026

Last Modified

September 9, 2026

Advisory Details (3)

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

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

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatrhoai/odh-mod-arch-gen-ai-rhel9:17930018962026-10-29redhat
redhatrhoai/odh-feature-server-rhel9:17921485232026-10-21redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17918609182026-10-19redhat
redhatrhtas/rekor-search-ui-rhel9:17915343392026-10-15redhat
redhatrhoai/odh-feature-server-rhel9:17897456312026-09-30redhat
redhatrhtas/rekor-search-ui-rhel9:17897258182026-09-23redhat
redhatquay/quay-rhel8:17885938432026-09-22redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609692026-09-17redhat
redhatrhmtc/openshift-migration-ui-rhel8:17895463732026-09-17redhat
redhatdevspaces/openvsx-rhel9:17891442692026-09-17redhat
redhatsatellite/iop-advisor-frontend-rhel9:17896595652026-09-17redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17896609832026-09-17redhat
redhatrhem/flightctl-ui-ocp-rhel9:17894864462026-09-16redhat
redhatrhem/flightctl-ui-rhel9:17894867502026-09-16redhat
redhatrhem/flightctl-ui-rhel10:17894861812026-09-16redhat
redhatrhem/flightctl-ui-rhel10:17894881112026-09-16redhat
redhatquay/quay-rhel8:17885943762026-09-10redhat
redhatquay/quay-rhel8:17885618412026-09-09redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17883121572026-09-08redhat
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/nmstate-console-plugin-rhel9:17875903722026-09-01redhat
redhatopenshift4/nmstate-console-plugin-rhel9:17877448432026-09-01redhat
redhatopenshift-service-mesh/kiali-rhel9:17870764952026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870771082026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870921982026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17870922552026-08-25redhat
redhatopenshift-service-mesh/kiali-rhel9:17871656832026-08-25redhat
npmbrowserslist @ 4.28.7 (fixes <= 4.28.6)—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

(4 across 4 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
node-browserslist4.21.10+~cs6.1.25-1 ... 4.28.7+~cs8.16.65-1 (16 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
node-browserslist4.25.0+~cs6.3.22-1 ... 4.28.7+~cs8.16.65-1 (8 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
node-browserslist4.25.0+~cs6.3.22-1 ... 4.28.2+~cs8.14.68-1 (7 versions)
  • every version up to 4.28.7+~cs8.16.65-1: fixed in 4.28.7+~cs8.16.65-1
—
npm(1)
PackageVulnerable rangeFix by version rangeDependents
browserslist—
  • every version up to 4.28.7: fixed in 4.28.7
—

Weakness Classification(1)

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

Additional Vendor Advisories

(15)

Data Freshness Timeline

(refreshed 9× in last 7d / 38× 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 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). "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 264 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 164 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 0.7% · 51st percentile
  2. 2026-11-13 04:34 UTCEchelonGraph re-scored
  3. 2026-11-13 04:34 UTCVendor advisory
  4. 2026-11-13 04:34 UTCGHSA enrichmentGHSA-c83g-rgw3-j3cx · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  9. 2026-11-08 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  10. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  11. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-11-05 13:21 UTCEchelonGraph re-scored
  14. 2026-11-05 13:21 UTCVendor advisory
  15. 2026-11-05 13:21 UTCGHSA enrichmentGHSA-c83g-rgw3-j3cx · GitHub severity HIGH · GitHub CVSS 7.5
  16. 2026-11-04 16:36 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  18. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-11-01 07:39 UTCGHSA enrichmentGHSA-c83g-rgw3-j3cx · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-11-01 07:39 UTCEchelonGraph re-scored
  22. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  24. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  25. 2026-10-28 22:08 UTCEchelonGraph re-scored
Show 75 more
  1. 2026-10-28 22:08 UTCVendor advisory
  2. 2026-10-28 19:55 UTCOSV refresh
  3. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  4. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  5. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  6. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  7. 2026-10-25 14:06 UTCEchelonGraph re-scored
  8. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  9. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  10. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  11. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  12. 2026-10-20 23:10 UTCEchelonGraph re-scored
  13. 2026-10-20 23:10 UTCVendor advisory
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  15. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  17. 2026-10-18 03:15 UTCEchelonGraph re-scored
  18. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  19. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  20. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  21. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  22. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  23. 2026-10-13 08:00 UTCEchelonGraph re-scored
  24. 2026-10-13 08:00 UTCVendor advisory
  25. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  26. 2026-10-12 15:41 UTCEchelonGraph re-scored
  27. 2026-10-11 19:26 UTCEchelonGraph re-scored
  28. 2026-10-11 16:42 UTCEchelonGraph re-scored
  29. 2026-10-11 14:02 UTCEchelonGraph re-scored
  30. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  31. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  32. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  33. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  34. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  35. 2026-10-07 04:34 UTCVendor advisory
  36. 2026-10-06 17:44 UTCEchelonGraph re-scored
  37. 2026-10-06 17:44 UTCVendor advisory
  38. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  39. 2026-10-05 17:51 UTCEchelonGraph re-scored
  40. 2026-10-05 17:51 UTCVendor advisory
  41. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  42. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  43. 2026-10-04 22:39 UTCVendor advisory
  44. 2026-10-04 07:42 UTCVendor advisory
  45. 2026-10-03 20:52 UTCEchelonGraph re-scored
  46. 2026-10-03 20:52 UTCVendor advisory
  47. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  48. 2026-10-02 19:27 UTCEchelonGraph re-scored
  49. 2026-10-02 19:27 UTCVendor advisory
  50. 2026-10-02 08:36 UTCEchelonGraph re-scored
  51. 2026-10-02 08:36 UTCVendor advisory
  52. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  53. 2026-10-01 09:03 UTCVendor advisory
  54. 2026-09-30 22:09 UTCEchelonGraph re-scored
  55. 2026-09-30 22:09 UTCVendor advisory
  56. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  57. 2026-09-29 05:10 UTCEchelonGraph re-scored
  58. 2026-09-29 05:10 UTCVendor advisory
  59. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  60. 2026-09-28 13:04 UTCVendor advisory
  61. 2026-09-28 02:13 UTCEchelonGraph re-scored
  62. 2026-09-28 02:13 UTCVendor advisory
  63. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  64. 2026-09-27 10:07 UTCEchelonGraph re-scored
  65. 2026-09-27 10:07 UTCVendor advisory
  66. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.7% · 49th percentile
  67. 2026-09-25 03:50 UTCEchelonGraph re-scored
  68. 2026-09-25 03:50 UTCVendor advisory
  69. 2026-09-24 08:08 UTCVendor advisory
  70. 2026-09-23 21:01 UTCEchelonGraph re-scored
  71. 2026-09-23 21:01 UTCVendor advisory
  72. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  73. 2026-09-23 08:04 UTCVendor advisory
  74. 2026-09-22 21:11 UTCEchelonGraph re-scored
  75. 2026-09-22 21:11 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-73089?
CVE-2026-73089 is a high-severity vulnerability; its CVE record was 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 the CVE record for CVE-2026-73089 published?
The CVE record for CVE-2026-73089 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 September 9, 2026; the record at its source may have been updated since.
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 (51st 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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