CVE-2026-118337

CRITICALNVD 9.39.3
EchelonGraph scoreHIGH confidence

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

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-28. NVD baseline CVSS 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2026-111439 (ENISA EUVD) · GHSA-8jpv-j2f3-9p56 (GitHub Security Advisories)Source: ENISA EUVD

9.3EG
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: 0.2%CVSS: 9.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Use after free in Forms in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3
9.3
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.3CRITICALhigh confidence
EG Risk
42
EG Risk 42/100

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)
Severity93% × 45%
Impact severity (EG Severity): CVSS 9.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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
0.2%
EPSS %ILE
13th
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 (9.3): severity, escalated by confirmed exploitation. This CVE's 9.3 is its impact severity (EG Severity), not escalated.

EG Severity
9.3 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% 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 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

October 27, 2026

Last Modified

November 3, 2026

Advisory Details (2)

Auto-updated Oct 30, 2026
Patch available.

Vendor Advisories for CVE-2026-118337(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 ... 156.0.8078.47-1~deb13u1 (440 versions)
  • every version up to 156.0.8078.73-1~deb12u1: fixed in 156.0.8078.73-1~deb12u1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 156.0.8078.73-1~deb12u1 (206 versions)
  • every version up to 156.0.8078.73-1~deb13u1: fixed in 156.0.8078.73-1~deb13u1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
chromium138.0.7204.183-1 ... 156.0.8078.73-1~deb13u1 (207 versions)
  • every version up to 156.0.8078.73-1: fixed in 156.0.8078.73-1
—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 19× in last 7d / 52× 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.

  1. 2026-11-13 07:21 UTCEchelonGraph re-scored
  2. 2026-11-13 07:21 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  3. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-11-12 08:45 UTCEchelonGraph re-scored
  5. 2026-11-12 08:45 UTCVendor advisory
  6. 2026-11-12 08:45 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  7. 2026-11-11 16:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-11-11 10:17 UTCEchelonGraph re-scored
  9. 2026-11-11 10:17 UTCVendor advisory
  10. 2026-11-11 10:17 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  11. 2026-11-10 16:42 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-11-10 11:44 UTCEchelonGraph re-scored
  13. 2026-11-10 11:44 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  14. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-11-09 13:16 UTCEchelonGraph re-scored
  16. 2026-11-09 13:16 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  17. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-11-08 14:48 UTCEchelonGraph re-scored
  19. 2026-11-08 14:48 UTCVendor advisory
  20. 2026-11-08 14:48 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  21. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-11-07 16:20 UTCVendor advisory
  23. 2026-11-07 16:20 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  24. 2026-11-06 17:51 UTCEchelonGraph re-scored
  25. 2026-11-06 17:51 UTCVendor advisory
Show 44 more
  1. 2026-11-06 17:51 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  2. 2026-11-06 16:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-11-05 19:23 UTCEchelonGraph re-scored
  4. 2026-11-05 19:23 UTCVendor advisory
  5. 2026-11-05 19:23 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  6. 2026-11-05 16:36 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-11-04 20:55 UTCEchelonGraph re-scored
  8. 2026-11-04 20:55 UTCVendor advisory
  9. 2026-11-04 20:55 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  10. 2026-11-04 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-11-03 22:27 UTCVendor advisory
  12. 2026-11-03 22:27 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  13. 2026-11-03 21:31 UTCEchelonGraph re-scored
  14. 2026-11-03 21:31 UTCVendor advisory
  15. 2026-11-03 21:31 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  16. 2026-11-03 16:46 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  17. 2026-11-03 08:19 UTCEchelonGraph re-scored
  18. 2026-11-03 08:19 UTCVendor advisory
  19. 2026-11-03 08:19 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  20. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  21. 2026-11-02 09:50 UTCEchelonGraph re-scored
  22. 2026-11-02 09:50 UTCVendor advisory
  23. 2026-11-02 09:50 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  24. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  25. 2026-11-01 11:22 UTCEchelonGraph re-scored
  26. 2026-11-01 11:22 UTCVendor advisory
  27. 2026-11-01 11:22 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  28. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  29. 2026-10-31 12:55 UTCEchelonGraph re-scored
  30. 2026-10-31 12:54 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56 · GitHub severity CRITICAL · GitHub CVSS 9.3
  31. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  32. 2026-10-30 14:26 UTCEchelonGraph re-scored▲ 3.90
  33. 2026-10-30 14:26 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56
  34. 2026-10-30 13:47 UTCNVD updateCVSS v3 → 9.3 · severity → CRITICAL
  35. 2026-10-30 13:45 UTCEchelonGraph re-scored▼ 3.40
  36. 2026-10-30 13:45 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56
  37. 2026-10-30 13:44 UTCMITRE cvelistV5CVSS → 5.4 · severity → MEDIUM
  38. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  39. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  40. 2026-10-28 14:30 UTCGHSA enrichmentGHSA-8jpv-j2f3-9p56
  41. 2026-10-28 00:01 UTCENISA EUVD ID recordedEUVD-2026-111439 · Source: ENISA EUVD
  42. 2026-10-27 23:26 UTCNVD update
  43. 2026-10-27 23:15 UTCEchelonGraph re-scoredFirst assessed: 8.8 HIGH
  44. 2026-10-27 23:14 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-118337?
CVE-2026-118337 is a critical-severity vulnerability; its CVE record was published on October 27, 2026. Use after free in Forms in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
When was the CVE record for CVE-2026-118337 published?
The CVE record for CVE-2026-118337 was published on October 27, 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 November 3, 2026; the record at its source may have been updated since.
Is CVE-2026-118337 actively exploited?
CVE-2026-118337 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-118337?
CVE-2026-118337 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2026-118337?
A fix for CVE-2026-118337 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-118337 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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