CVE-2026-45245

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

Score 7.4 from GitHub Security Advisory published 2026-05-18. NVD baseline CVSS 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.4Exploit: NoneExposed: 0

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

Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness. Attackers can place local or private-network URLs behind hoverable links to route authenticated requests through the daemon, potentially accessing sensitive internal endpoints when users interact with attacker-controlled content.

CVSS v3
7.4
EG Score
7.4(medium)
EPSS
25.0%
KEV
Not listed

Published

May 18, 2026

Last Modified

May 19, 2026

Advisory Details (4)

Auto-updated Jun 9, 2026
Patch available. Sources: github_commit, github_pr, github_release.
github_pr Patch Available

[security] fix(extension): harden hover summary trust boundary

Patch available: steipete/summarize v0.15.1 (PR #218 merged 2026-05-14)

https://github.com/steipete/summarize/pull/218
generic

Summarize < 0.15.1 Unauthorized Daemon Request via Untrusted Events | Advisories | VulnCheck

https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events
github_release Patch Available

v0.15.2

Patch available: steipete/summarize v0.15.2

https://github.com/steipete/summarize/releases/tag/v0.15.2
github_commit Patch Available

commit ecbb2c414255 (steipete/summarize)

Patch available: steipete/summarize v0.15.1 (contains commit ecbb2c414255)

https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb

Vendor Advisories for CVE-2026-45245(1)

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

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
@steipete/summarize—0.15.1—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 52× 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 102 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-45245?
CVE-2026-45245 is a high vulnerability published on May 18, 2026. Summarize prior to 0.15.1 contains a vulnerability in the hover summary feature that allows malicious pages to dispatch synthetic mouseover events over attacker-controlled links, causing the extension to make authenticated daemon requests using stored tokens without verifying event trustworthiness.…
When was CVE-2026-45245 disclosed?
CVE-2026-45245 was first published in the National Vulnerability Database on May 18, 2026, with the most recent update on May 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45245 actively exploited?
CVE-2026-45245 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45245?
CVE-2026-45245 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-45245?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45245, 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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