CVE-2026-79066

LOWPre-NVD 3.13.1
EchelonGraph scoreMEDIUM confidence

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

Score 3.1 from GitHub Security Advisory (severity: LOW) published 2026-08-25. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: CISA-ADP (Vulnrichment) CVSS v3.1, EPSS, GitHub Security Advisory
Trending — 4 sources updated this week
3.1EG
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: 0.3%CVSS: 3.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Improper input validation in Navigation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
3.1
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
3.1LOWmedium confidence
EG Risk
14
EG Risk 14/100

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 (value × EchelonGraph’s weight)
Severity31% × 45%
The EG Score, 3.1 of 10.
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 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
0.3%
EPSS %ILE
16th
KEV
Not listed

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.

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

August 25, 2026

Last Modified

September 17, 2026

References (2)

Vendor Advisories for CVE-2026-79066(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 ... 152.0.7977.64-1 (412 versions)
  • every version up to 152.0.7977.75-1~deb12u1: fixed in 152.0.7977.75-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 152.0.7977.75-1~deb12u1 (178 versions)
  • every version up to 152.0.7977.75-1~deb13u1: fixed in 152.0.7977.75-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb13u1 (176 versions)
  • every version up to 152.0.7977.64-1: fixed in 152.0.7977.64-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× 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.

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. 4 repeat rows among the latest 97 are merged into the row they repeat.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  2. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  3. 2026-10-12 15:36 UTCEG score recompute
  4. 2026-10-11 19:22 UTCEG score recompute
  5. 2026-10-11 16:38 UTCEG score recompute
  6. 2026-10-11 13:56 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  9. 2026-10-10 12:14 UTCEG score recompute
  10. 2026-10-10 12:14 UTCVendor advisory
  11. 2026-10-10 12:14 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  13. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  14. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  15. 2026-10-07 07:13 UTCEG score recompute
  16. 2026-10-07 07:13 UTCVendor advisory
  17. 2026-10-07 07:13 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  18. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  19. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  21. 2026-10-04 02:09 UTCEG score recompute
  22. 2026-10-04 02:09 UTCVendor advisory
  23. 2026-10-04 02:09 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  24. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 15th percentile
Show 68 more
  1. 2026-09-30 20:11 UTCEG score recompute
  2. 2026-09-30 20:11 UTCVendor advisory
  3. 2026-09-30 20:11 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  4. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  5. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  6. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  7. 2026-09-27 10:06 UTCEG score recompute
  8. 2026-09-27 10:06 UTCVendor advisory
  9. 2026-09-27 10:06 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  10. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  11. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  12. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 15th percentile
  13. 2026-09-24 05:05 UTCEG score recompute
  14. 2026-09-24 05:05 UTCVendor advisory
  15. 2026-09-24 05:05 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  16. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  17. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  18. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  19. 2026-09-21 00:05 UTCEG score recompute
  20. 2026-09-21 00:05 UTCVendor advisory
  21. 2026-09-21 00:05 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  22. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  23. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  24. 2026-09-17 19:04 UTCVendor advisory
  25. 2026-09-17 19:04 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  26. 2026-09-16 19:17 UTCEG score recompute
  27. 2026-09-16 19:17 UTCVendor advisory
  28. 2026-09-16 19:17 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  29. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  30. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  31. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  32. 2026-09-13 13:24 UTCEG score recompute
  33. 2026-09-13 13:24 UTCVendor advisory
  34. 2026-09-13 13:24 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  35. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  36. 2026-09-10 08:24 UTCEG score recompute
  37. 2026-09-10 08:24 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  38. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  39. 2026-09-07 03:20 UTCEG score recompute
  40. 2026-09-07 03:20 UTCVendor advisory
  41. 2026-09-07 03:19 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  42. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  43. 2026-09-03 22:14 UTCEG score recompute
  44. 2026-09-03 22:14 UTCVendor advisory
  45. 2026-09-03 22:14 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  46. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  47. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.3% · 16th percentile
  48. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  49. 2026-08-31 16:40 UTCVendor advisory
  50. 2026-08-31 16:40 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  51. 2026-08-31 01:20 UTCEG score recompute
  52. 2026-08-31 01:20 UTCVendor advisory
  53. 2026-08-31 01:20 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj · GitHub severity LOW · GitHub CVSS 3.1
  54. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  55. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  56. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  57. 2026-08-27 20:19 UTCEG score recompute▼ 3.40
  58. 2026-08-27 20:19 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj
  59. 2026-08-27 20:13 UTCMITRE cvelistV5CVSS v3 → 3.1 · severity → LOW
  60. 2026-08-27 16:31 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj
  61. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  62. 2026-08-26 16:41 UTCEG score recompute
  63. 2026-08-26 16:41 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj
  64. 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  65. 2026-08-25 21:32 UTCGHSA enrichmentGHSA-rmfh-4236-c3gj
  66. 2026-08-25 21:26 UTCNVD update
  67. 2026-08-25 20:31 UTCEG score recomputeFirst assessed: 6.5 MEDIUM
  68. 2026-08-25 20:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-79066?
CVE-2026-79066 is a low-severity vulnerability; its CVE record was published on August 25, 2026. Improper input validation in Navigation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: Medium)
When was the CVE record for CVE-2026-79066 published?
The CVE record for CVE-2026-79066 was published on August 25, 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 17, 2026; the record at its source may have been updated since.
Is CVE-2026-79066 actively exploited?
CVE-2026-79066 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (16th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-79066?
CVE-2026-79066 has a CVSS v3.1 base score of 3.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-79066?
A fix for CVE-2026-79066 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-79066 are linked in the Vendor Advisories panel on this page.

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