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Vulnerability details: VCID-w48t-hex5-qkcs
Vulnerability ID VCID-w48t-hex5-qkcs
Aliases CVE-2026-34784
GHSA-hpm8-9qx6-jvwv
Summary Parser Server's streaming file download bypasses afterFind file trigger authorization ### Impact File downloads via HTTP Range requests bypass the `afterFind(Parse.File)` trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by `afterFind` trigger authorization logic or built-in validators such as `requireUser`. ### Patches The streaming file download path now executes the `afterFind(Parse.File)` trigger before sending any data. Authentication is resolved from the session token header so that trigger validators can distinguish authenticated from unauthenticated requests. ### Workarounds Use `beforeFind(Parse.File)` instead of `afterFind(Parse.File)` for file access authorization. The `beforeFind` trigger runs on all download paths including streaming.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-285 Improper Authorization
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
epss 0.00016 https://api.first.org/data/v1/epss?cve=CVE-2026-34784
epss 0.00016 https://api.first.org/data/v1/epss?cve=CVE-2026-34784
epss 0.00016 https://api.first.org/data/v1/epss?cve=CVE-2026-34784
cvssv3.1_qr HIGH https://github.com/advisories/GHSA-hpm8-9qx6-jvwv
cvssv4 8.2 https://github.com/parse-community/parse-server
generic_textual HIGH https://github.com/parse-community/parse-server
cvssv4 8.2 https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
generic_textual HIGH https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
ssvc Track https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
cvssv4 8.2 https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
generic_textual HIGH https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
ssvc Track https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
cvssv4 8.2 https://github.com/parse-community/parse-server/pull/10361
generic_textual HIGH https://github.com/parse-community/parse-server/pull/10361
ssvc Track https://github.com/parse-community/parse-server/pull/10361
cvssv4 8.2 https://github.com/parse-community/parse-server/pull/10362
generic_textual HIGH https://github.com/parse-community/parse-server/pull/10362
ssvc Track https://github.com/parse-community/parse-server/pull/10362
cvssv3.1_qr HIGH https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
cvssv4 8.2 https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
generic_textual HIGH https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
ssvc Track https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
cvssv4 8.2 https://nvd.nist.gov/vuln/detail/CVE-2026-34784
generic_textual HIGH https://nvd.nist.gov/vuln/detail/CVE-2026-34784
Reference id Reference type URL
https://api.first.org/data/v1/epss?cve=CVE-2026-34784
https://github.com/parse-community/parse-server
https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
https://github.com/parse-community/parse-server/pull/10361
https://github.com/parse-community/parse-server/pull/10362
https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
https://nvd.nist.gov/vuln/detail/CVE-2026-34784
GHSA-hpm8-9qx6-jvwv https://github.com/advisories/GHSA-hpm8-9qx6-jvwv
No exploits are available.
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-31T20:29:31Z/ Found at https://github.com/parse-community/parse-server/commit/053109b3ee71815bc39ed84116c108ff9edbf337
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-31T20:29:31Z/ Found at https://github.com/parse-community/parse-server/commit/a0b0c69fc44f87f80d793d257344e7dcbf676e22
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/pull/10361
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-31T20:29:31Z/ Found at https://github.com/parse-community/parse-server/pull/10361
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/pull/10362
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-31T20:29:31Z/ Found at https://github.com/parse-community/parse-server/pull/10362
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-31T20:29:31Z/ Found at https://github.com/parse-community/parse-server/security/advisories/GHSA-hpm8-9qx6-jvwv
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Found at https://nvd.nist.gov/vuln/detail/CVE-2026-34784
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

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Exploit Prediction Scoring System (EPSS)
Percentile 0.03611
EPSS Score 0.00016
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:53:29.639985+00:00 GithubOSV Importer Import https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-hpm8-9qx6-jvwv/GHSA-hpm8-9qx6-jvwv.json 38.6.0