CVE-2026-93376

MEDIUMPre-NVD 6.36.3
EchelonGraph scoreMEDIUM confidence

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

Score 6.3 from GitHub Security Advisory published 2026-09-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory

Also known asEUVD-2026-82487 (ENISA EUVD) · GHSA-8qh9-fmcv-7vc2 (GitHub Security Advisories)Source: ENISA EUVD

6.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 6.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Out of bounds read in DataTransfer in Google Chrome prior to 153.0.8010.52 allowed a local attacker leveraging social engineering to read memory outside the sandbox via a local program. (Chromium security severity: Medium)

CVSS v3
6.3
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
6.3MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100

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)
Severity63% × 45%
Impact severity (EG Severity): CVSS 6.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.1% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.1%
EPSS %ILE
1st
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 (6.3): severity, escalated by confirmed exploitation. This CVE's 6.3 is its impact severity (EG Severity), not escalated.

EG Severity
6.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-24). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 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 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

September 17, 2026

Last Modified

September 21, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
Patch available.

Vendor Advisories for CVE-2026-93376(2)

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

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
chromium113.0.5672.126-1 ... 153.0.8010.47-2~deb13u1 (422 versions)
  • every version up to 153.0.8010.52-1~deb12u1: fixed in 153.0.8010.52-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 153.0.8010.52-1~deb12u1 (188 versions)
  • every version up to 153.0.8010.52-1~deb13u1: fixed in 153.0.8010.52-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 153.0.8010.52-1~deb13u1 (189 versions)
  • every version up to 153.0.8010.52-1: fixed in 153.0.8010.52-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 58× 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.

  1. 2026-11-01 16:36 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  3. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  4. 2026-10-27 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  5. 2026-10-26 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  6. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-25 13:49 UTCEG score recompute
  8. 2026-10-24 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  9. 2026-10-23 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  10. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-20 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  12. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  13. 2026-10-18 02:59 UTCEG score recompute
  14. 2026-10-17 21:35 UTCEG score recompute
  15. 2026-10-17 21:35 UTCVendor advisory
  16. 2026-10-17 21:35 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  17. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  18. 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  19. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  20. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  21. 2026-10-12 14:43 UTCEG score recompute
  22. 2026-10-12 04:59 UTCVendor advisory
  23. 2026-10-12 04:58 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  24. 2026-10-11 19:12 UTCEG score recompute
  25. 2026-10-11 16:28 UTCEG score recompute
Show 73 more
  1. 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  2. 2026-10-11 13:42 UTCEG score recompute
  3. 2026-10-11 02:50 UTCEG score recompute
  4. 2026-10-11 02:50 UTCVendor advisory
  5. 2026-10-11 02:50 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  7. 2026-10-10 00:14 UTCEG score recompute
  8. 2026-10-10 00:14 UTCVendor advisory
  9. 2026-10-10 00:13 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  10. 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  11. 2026-10-08 22:10 UTCEG score recompute
  12. 2026-10-08 22:10 UTCVendor advisory
  13. 2026-10-08 22:10 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  14. 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  15. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  16. 2026-10-07 20:06 UTCVendor advisory
  17. 2026-10-07 20:06 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  18. 2026-10-06 18:03 UTCEG score recompute
  19. 2026-10-06 18:03 UTCVendor advisory
  20. 2026-10-06 18:03 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  21. 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  22. 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  23. 2026-10-05 16:00 UTCEG score recompute
  24. 2026-10-05 16:00 UTCVendor advisory
  25. 2026-10-05 16:00 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  26. 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  27. 2026-10-04 13:54 UTCEG score recompute
  28. 2026-10-04 13:54 UTCVendor advisory
  29. 2026-10-04 13:54 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  30. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  31. 2026-10-03 11:51 UTCEG score recompute
  32. 2026-10-03 11:51 UTCVendor advisory
  33. 2026-10-03 11:51 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  34. 2026-10-02 09:47 UTCEG score recompute
  35. 2026-10-02 09:47 UTCVendor advisory
  36. 2026-10-02 09:47 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  37. 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  38. 2026-10-01 07:44 UTCEG score recompute
  39. 2026-10-01 07:44 UTCVendor advisory
  40. 2026-10-01 07:44 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  41. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  42. 2026-09-30 05:42 UTCEG score recompute
  43. 2026-09-30 05:41 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  44. 2026-09-29 03:36 UTCEG score recompute
  45. 2026-09-29 03:36 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  46. 2026-09-28 01:33 UTCEG score recompute
  47. 2026-09-28 01:33 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  48. 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  49. 2026-09-26 23:29 UTCEG score recompute
  50. 2026-09-26 23:29 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  51. 2026-09-25 21:16 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  52. 2026-09-24 19:11 UTCEG score recompute
  53. 2026-09-24 19:11 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  54. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  55. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  56. 2026-09-23 17:08 UTCEG score recompute
  57. 2026-09-23 17:08 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  58. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.1% · 1st percentile
  59. 2026-09-22 15:02 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  60. 2026-09-21 12:58 UTCEG score recompute
  61. 2026-09-21 12:58 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  62. 2026-09-20 20:16 UTCEPSS rescoreEPSS <0.1% · below the 1st percentile
  63. 2026-09-20 18:27 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  64. 2026-09-19 16:24 UTCEG score recompute
  65. 2026-09-19 16:24 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2 · GitHub CVSS 6.3
  66. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 3rd percentile
  67. 2026-09-18 14:21 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2
  68. 2026-09-18 13:34 UTCEG score recompute▼ 0.20
  69. 2026-09-18 13:34 UTCGHSA enrichmentGHSA-8qh9-fmcv-7vc2
  70. 2026-09-18 13:34 UTCMITRE cvelistV5CVSS v3 → 6.3 · severity → MEDIUM
  71. 2026-09-17 21:19 UTCNVD update
  72. 2026-09-17 21:14 UTCEG score recomputeFirst assessed: 6.5 MEDIUM
  73. 2026-09-17 21:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-93376?
CVE-2026-93376 is a medium-severity vulnerability; its CVE record was published on September 17, 2026. Out of bounds read in DataTransfer in Google Chrome prior to 153.0.8010.52 allowed a local attacker leveraging social engineering to read memory outside the sandbox via a local program. (Chromium security severity: Medium)
When was the CVE record for CVE-2026-93376 published?
The CVE record for CVE-2026-93376 was published on September 17, 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 21, 2026; the record at its source may have been updated since.
Is CVE-2026-93376 actively exploited?
CVE-2026-93376 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-93376?
CVE-2026-93376 has a CVSS v3.1 base score of 6.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-93376?
A fix for CVE-2026-93376 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-93376 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-2026-93376

Explore →

Is Your Infrastructure Affected by CVE-2026-93376?

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