CVE-2026-17903

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreMEDIUM confidence

Score 5.4 from GitHub Security Advisory published 2026-07-30. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

Insufficient policy enforcement in Chromecast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to inject scripts or HTML into a privileged page via malicious network traffic. (Chromium security severity: Low)

CVSS v3
5.4
Vendor severity
LOWper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: Low)
EG Score
5.4(medium)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

July 30, 2026

Last Modified

August 3, 2026

Advisory Details (2)

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

Chromium

https://issues.chromium.org/issues/497277880
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-2026-17903(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 22× in last 7d / 96× 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. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 22:50 UTCEG score recompute
  3. 2026-08-29 22:50 UTCVendor advisory
  4. 2026-08-29 22:49 UTCGHSA enrichment
  5. 2026-08-28 21:41 UTCEPSS rescore
  6. 2026-08-27 21:49 UTCEG score recompute
  7. 2026-08-27 21:49 UTCVendor advisory
  8. 2026-08-27 21:49 UTCGHSA enrichment
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-26 19:35 UTCEG score recompute
  11. 2026-08-26 19:35 UTCVendor advisory
  12. 2026-08-26 19:35 UTCGHSA enrichment
  13. 2026-08-26 14:46 UTCEPSS rescore
  14. 2026-08-25 14:52 UTCEG score recompute
  15. 2026-08-25 14:52 UTCVendor advisory
  16. 2026-08-25 14:52 UTCGHSA enrichment
  17. 2026-08-24 12:38 UTCEG score recompute
  18. 2026-08-24 12:38 UTCVendor advisory
  19. 2026-08-24 12:38 UTCGHSA enrichment
  20. 2026-08-23 10:23 UTCEG score recompute
  21. 2026-08-23 10:23 UTCVendor advisory
  22. 2026-08-23 10:23 UTCGHSA enrichment
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-22 08:01 UTCEG score recompute
  25. 2026-08-22 08:01 UTCVendor advisory
Show 75 more
  1. 2026-08-22 08:01 UTCGHSA enrichment
  2. 2026-08-21 23:49 UTCEPSS rescore
  3. 2026-08-21 05:46 UTCEG score recompute
  4. 2026-08-21 05:46 UTCVendor advisory
  5. 2026-08-21 05:46 UTCGHSA enrichment
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-20 03:31 UTCEG score recompute
  8. 2026-08-20 03:31 UTCGHSA enrichment
  9. 2026-08-19 17:03 UTCEPSS rescore
  10. 2026-08-19 01:16 UTCEG score recompute
  11. 2026-08-19 01:16 UTCVendor advisory
  12. 2026-08-19 01:16 UTCGHSA enrichment
  13. 2026-08-18 13:48 UTCEPSS rescore
  14. 2026-08-17 23:01 UTCEG score recompute
  15. 2026-08-17 23:01 UTCVendor advisory
  16. 2026-08-17 23:01 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-16 20:45 UTCEG score recompute
  19. 2026-08-16 20:45 UTCVendor advisory
  20. 2026-08-16 20:45 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 18:30 UTCEG score recompute
  24. 2026-08-15 18:30 UTCVendor advisory
  25. 2026-08-15 18:30 UTCGHSA enrichment
  26. 2026-08-15 01:30 UTCEPSS rescore
  27. 2026-08-14 16:15 UTCEG score recompute
  28. 2026-08-14 16:15 UTCVendor advisory
  29. 2026-08-14 16:15 UTCGHSA enrichment
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 14:00 UTCEG score recompute
  32. 2026-08-13 14:00 UTCVendor advisory
  33. 2026-08-13 14:00 UTCGHSA enrichment
  34. 2026-08-12 13:50 UTCEPSS rescore
  35. 2026-08-12 11:46 UTCVendor advisory
  36. 2026-08-12 11:46 UTCGHSA enrichment
  37. 2026-08-11 09:31 UTCEG score recompute
  38. 2026-08-11 09:31 UTCVendor advisory
  39. 2026-08-11 09:31 UTCGHSA enrichment
  40. 2026-08-11 00:00 UTCEPSS rescore
  41. 2026-08-10 07:16 UTCGHSA enrichment
  42. 2026-08-09 05:02 UTCEG score recompute
  43. 2026-08-09 05:02 UTCVendor advisory
  44. 2026-08-09 05:02 UTCGHSA enrichment
  45. 2026-08-08 16:37 UTCEPSS rescore
  46. 2026-08-08 02:48 UTCEG score recompute
  47. 2026-08-08 02:48 UTCVendor advisory
  48. 2026-08-08 02:48 UTCGHSA enrichment
  49. 2026-08-07 00:33 UTCEG score recompute
  50. 2026-08-07 00:33 UTCVendor advisory
  51. 2026-08-07 00:33 UTCGHSA enrichment
  52. 2026-08-06 13:46 UTCEPSS rescore
  53. 2026-08-05 22:19 UTCEG score recompute
  54. 2026-08-05 22:19 UTCVendor advisory
  55. 2026-08-05 22:19 UTCGHSA enrichment
  56. 2026-08-05 19:17 UTCEPSS rescore
  57. 2026-08-04 20:05 UTCEG score recompute
  58. 2026-08-04 20:05 UTCVendor advisory
  59. 2026-08-04 20:04 UTCGHSA enrichment
  60. 2026-08-04 15:10 UTCEPSS rescore
  61. 2026-08-03 17:50 UTCEG score recompute
  62. 2026-08-03 17:49 UTCGHSA enrichment
  63. 2026-08-03 10:35 UTCEPSS rescore
  64. 2026-08-03 02:23 UTCVendor advisory
  65. 2026-08-03 02:23 UTCGHSA enrichment
  66. 2026-08-02 00:08 UTCEG score recompute
  67. 2026-08-02 00:08 UTCVendor advisory
  68. 2026-08-02 00:08 UTCGHSA enrichment
  69. 2026-08-01 04:15 UTCEPSS rescore
  70. 2026-07-31 21:54 UTCEG score recompute
  71. 2026-07-31 21:54 UTCGHSA enrichment
  72. 2026-07-30 19:39 UTCGHSA enrichment
  73. 2026-07-30 18:56 UTCEG score recompute▲ 5.40
  74. 2026-07-30 18:56 UTCGHSA enrichment
  75. 2026-07-30 18:55 UTCMITRE cvelistV5CVSS v3 → 5.4 · severity → MEDIUM

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-17903?
CVE-2026-17903 is a medium vulnerability published on July 30, 2026. Insufficient policy enforcement in Chromecast in Google Chrome prior to 151.0.7922.72 allowed an attacker on the local network segment to inject scripts or HTML into a privileged page via malicious network traffic. (Chromium security severity: Low)
When was CVE-2026-17903 disclosed?
CVE-2026-17903 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-2026-17903 actively exploited?
CVE-2026-17903 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 98.1% of all scored CVEs.
What is the CVSS score of CVE-2026-17903?
CVE-2026-17903 has a CVSS v3.1 base score of 5.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-17903?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-17903, 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-2026-17903

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