CVE-2026-11307

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 4 sources updated this week
8.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 8.8Exploit: NoneExposed: 0

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

Use after free in PDFium in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: Low)

CVSS v3
8.8
EG Score
8.8(medium)
EPSS
13.6%
KEV
Not listed

Published

June 4, 2026

Last Modified

June 8, 2026

Advisory Details (2)

Auto-updated Jun 5, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/504551617
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html

Vendor Advisories for CVE-2026-11307(2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 173× 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 178 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-11307?
CVE-2026-11307 is a high vulnerability published on June 4, 2026. Use after free in PDFium in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted PDF file. (Chromium security severity: Low)
When was CVE-2026-11307 disclosed?
CVE-2026-11307 was first published in the National Vulnerability Database on June 4, 2026, with the most recent update on June 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11307 actively exploited?
CVE-2026-11307 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-11307?
CVE-2026-11307 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-11307?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11307, 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

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