CVE-2026-45245

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 HIGH

7.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb	Patch
https://github.com/steipete/summarize/pull/218	Exploit Issue Tracking Patch
https://github.com/steipete/summarize/releases/tag/v0.15.2	Release Notes
https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events	Third Party Advisory
https://github.com/steipete/summarize/pull/218	Exploit Issue Tracking Patch

Configurations

Configuration 1 (hide)

cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-18 20:16

Updated : 2026-07-14 22:16

NVD link : CVE-2026-45245

Mitre link : CVE-2026-45245

CVE.ORG link : CVE-2026-45245

JSON object : View

Products Affected

steipete

summarize

CWE

CWE-918

Server-Side Request Forgery (SSRF)

CWE-940

Improper Verification of Source of a Communication Channel

{"id": "CVE-2026-45245", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45245", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-18T20:30:27.411418Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.4, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 4.0, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 4.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "ACTIVE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"repo": "https://github.com/steipete/summarize", "vendor": "steipete", "product": "summarize", "versions": [{"status": "affected", "version": "0", "lessThan": "0.15.1", "versionType": "semver"}, {"status": "unaffected", "version": "ecbb2c414255aa480a15d0d8b205224c14cfdbcb", "versionType": "git"}], "packageURL": "pkg:github/steipete/summarize", "defaultStatus": "affected"}]}], "published": "2026-05-18T20:16:38.593", "references": [{"url": "https://github.com/steipete/summarize/commit/ecbb2c414255aa480a15d0d8b205224c14cfdbcb", "tags": ["Patch"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/steipete/summarize/pull/218", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/steipete/summarize/releases/tag/v0.15.2", "tags": ["Release Notes"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/summarize-unauthorized-daemon-request-via-untrusted-events", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/steipete/summarize/pull/218", "tags": ["Exploit", "Issue Tracking", "Patch"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-918"}, {"lang": "en", "value": "CWE-940"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-14T22:16:54.057", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:steipete:summarize:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FDA6FF18-A9BB-4892-B428-AB85BB58E16A", "versionEndExcluding": "0.15.1"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}