CVE-2026-17856

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-30. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Inappropriate implementation in Network in Google Chrome on Mac prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
9.6
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
9.6(medium)
EG Risk
43(Track)
EG Risk 43/100SSVC: Track

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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 3, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/519991751
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html

Vendor Advisories for CVE-2026-17856(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (500 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 151.0.7922.47-1 (394 versions)151.0.7922.71-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 151.0.7922.71-1~deb12u1 (160 versions)151.0.7922.71-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 152.0.7977.64-1 (177 versions)——

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 63× in last 7d / 266× 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 540 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-17856?
CVE-2026-17856 is a critical vulnerability published on July 30, 2026. Inappropriate implementation in Network in Google Chrome on Mac prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-17856 disclosed?
CVE-2026-17856 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17856 actively exploited?
CVE-2026-17856 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.8% of all scored CVEs.
What is the CVSS score of CVE-2026-17856?
CVE-2026-17856 has a CVSS v3.1 base score of 9.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17856?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17856, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-17856

Explore →

Is Your Infrastructure Affected by CVE-2026-17856?

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

Start Free Scan →Browse All CVEs