CVE-2026-17798

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-07-30. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

Inappropriate implementation in Cast in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
4.3
Vendor severity
MEDIUMper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Medium)
EG Score
4.3(high)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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
Severity43% × 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 4, 2026

Advisory Details (2)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/514460133
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-2026-17798(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 ... 151.0.7922.71-1~deb13u1 (162 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 23× in last 7d / 103× 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 103 total refreshes for this CVE.

  1. 2026-08-26 14:46 UTCEPSS rescore
  2. 2026-08-26 06:47 UTCEG score recompute
  3. 2026-08-26 06:47 UTCVendor advisory
  4. 2026-08-26 06:47 UTCGHSA enrichment
  5. 2026-08-25 13:48 UTCEPSS rescore
  6. 2026-08-25 04:54 UTCEG score recompute
  7. 2026-08-25 04:54 UTCVendor advisory
  8. 2026-08-25 04:54 UTCGHSA enrichment
  9. 2026-08-24 03:14 UTCVendor advisory
  10. 2026-08-24 03:13 UTCGHSA enrichment
  11. 2026-08-23 01:15 UTCEG score recompute
  12. 2026-08-23 01:15 UTCVendor advisory
  13. 2026-08-23 01:15 UTCGHSA enrichment
  14. 2026-08-23 00:19 UTCEPSS rescore
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-21 23:34 UTCEG score recompute
  17. 2026-08-21 23:34 UTCGHSA enrichment
  18. 2026-08-20 22:55 UTCEPSS rescore
  19. 2026-08-20 21:53 UTCVendor advisory
  20. 2026-08-20 21:53 UTCGHSA enrichment
  21. 2026-08-19 20:13 UTCEG score recompute
  22. 2026-08-19 20:13 UTCVendor advisory
  23. 2026-08-19 20:13 UTCGHSA enrichment
  24. 2026-08-19 17:03 UTCEPSS rescore
  25. 2026-08-18 18:30 UTCEG score recompute
Show 75 more
  1. 2026-08-18 18:30 UTCVendor advisory
  2. 2026-08-18 18:30 UTCGHSA enrichment
  3. 2026-08-18 13:48 UTCEPSS rescore
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-17 12:16 UTCEG score recompute
  6. 2026-08-17 12:16 UTCVendor advisory
  7. 2026-08-17 12:16 UTCGHSA enrichment
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 10:36 UTCEG score recompute
  10. 2026-08-16 10:36 UTCVendor advisory
  11. 2026-08-16 10:36 UTCGHSA enrichment
  12. 2026-08-16 02:14 UTCEPSS rescore
  13. 2026-08-15 08:56 UTCEG score recompute
  14. 2026-08-15 08:56 UTCVendor advisory
  15. 2026-08-15 08:56 UTCGHSA enrichment
  16. 2026-08-15 01:30 UTCEPSS rescore
  17. 2026-08-14 07:16 UTCEG score recompute
  18. 2026-08-14 07:16 UTCVendor advisory
  19. 2026-08-14 07:16 UTCGHSA enrichment
  20. 2026-08-13 22:00 UTCEPSS rescore
  21. 2026-08-13 05:36 UTCEG score recompute
  22. 2026-08-13 05:36 UTCVendor advisory
  23. 2026-08-13 05:35 UTCGHSA enrichment
  24. 2026-08-12 13:50 UTCEPSS rescore
  25. 2026-08-12 03:55 UTCEG score recompute
  26. 2026-08-12 03:55 UTCVendor advisory
  27. 2026-08-12 03:55 UTCGHSA enrichment
  28. 2026-08-11 13:42 UTCEPSS rescore
  29. 2026-08-11 02:15 UTCEG score recompute
  30. 2026-08-11 02:15 UTCVendor advisory
  31. 2026-08-11 02:15 UTCGHSA enrichment
  32. 2026-08-11 00:00 UTCEPSS rescore
  33. 2026-08-10 00:35 UTCEG score recompute
  34. 2026-08-10 00:35 UTCVendor advisory
  35. 2026-08-10 00:35 UTCGHSA enrichment
  36. 2026-08-09 13:46 UTCEPSS rescore
  37. 2026-08-08 22:55 UTCEG score recompute
  38. 2026-08-08 22:55 UTCVendor advisory
  39. 2026-08-08 22:55 UTCGHSA enrichment
  40. 2026-08-08 16:37 UTCEPSS rescore
  41. 2026-08-07 21:14 UTCEG score recompute
  42. 2026-08-07 21:14 UTCGHSA enrichment
  43. 2026-08-06 19:34 UTCEG score recompute
  44. 2026-08-06 19:34 UTCVendor advisory
  45. 2026-08-06 19:34 UTCGHSA enrichment
  46. 2026-08-06 13:46 UTCEPSS rescore
  47. 2026-08-05 19:17 UTCEPSS rescore
  48. 2026-08-05 17:54 UTCGHSA enrichment
  49. 2026-08-04 16:14 UTCEG score recompute
  50. 2026-08-04 16:14 UTCVendor advisory
  51. 2026-08-04 16:14 UTCGHSA enrichment
  52. 2026-08-04 15:10 UTCEPSS rescore
  53. 2026-08-04 14:32 UTCEG score recompute
  54. 2026-08-04 14:32 UTCVendor advisory
  55. 2026-08-04 14:32 UTCGHSA enrichment
  56. 2026-08-04 10:38 UTCEPSS rescore
  57. 2026-08-03 23:13 UTCEG score recompute
  58. 2026-08-03 23:13 UTCGHSA enrichment
  59. 2026-08-03 10:35 UTCEPSS rescore
  60. 2026-08-02 21:32 UTCEG score recompute
  61. 2026-08-02 21:32 UTCVendor advisory
  62. 2026-08-02 21:32 UTCGHSA enrichment
  63. 2026-08-02 02:26 UTCEPSS rescore
  64. 2026-08-01 19:52 UTCEG score recompute
  65. 2026-08-01 19:52 UTCVendor advisory
  66. 2026-08-01 19:52 UTCGHSA enrichment
  67. 2026-08-01 04:15 UTCEPSS rescore
  68. 2026-07-31 18:12 UTCGHSA enrichment
  69. 2026-07-30 16:31 UTCEG score recompute
  70. 2026-07-30 16:31 UTCGHSA enrichment
  71. 2026-07-30 15:11 UTCGHSA enrichment
  72. 2026-07-30 14:36 UTCGHSA enrichment
  73. 2026-07-30 14:06 UTCEG score recompute▲ 4.30
  74. 2026-07-30 14:06 UTCGHSA enrichment
  75. 2026-07-30 14:06 UTCMITRE cvelistV5CVSS v3 → 4.3 · severity → MEDIUM

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-17798?
CVE-2026-17798 is a medium vulnerability published on July 30, 2026. Inappropriate implementation in Cast in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2026-17798 disclosed?
CVE-2026-17798 was first published in the National Vulnerability Database on July 30, 2026, with the most recent update on August 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-17798 actively exploited?
CVE-2026-17798 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-2026-17798?
CVE-2026-17798 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17798?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17798, 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-2026-17798

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