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Lookup for vulnerable packages by Package URL.

Purlpkg:apk/alpine/synapse@1.41.1-r0?arch=armv7&distroversion=v3.18&reponame=community
Typeapk
Namespacealpine
Namesynapse
Version1.41.1-r0
Qualifiers
arch armv7
distroversion v3.18
reponame community
Subpath
Is_vulnerablefalse
Next_non_vulnerable_version1.61.1-r0
Latest_non_vulnerable_version1.93.0-r0
Affected_by_vulnerabilities
Fixing_vulnerabilities
0
url VCID-7ga2-hq9p-ykct
vulnerability_id VCID-7ga2-hq9p-ykct
summary Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter.
references
0
reference_url https://api.first.org/data/v1/epss?cve=CVE-2021-39164
reference_id
reference_type
scores
0
value 0.00271
scoring_system epss
scoring_elements 0.50738
published_at 2026-05-29T12:55:00Z
url https://api.first.org/data/v1/epss?cve=CVE-2021-39164
1
reference_url https://github.com/matrix-org/synapse
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/matrix-org/synapse
2
reference_url https://github.com/matrix-org/synapse/commit/cb35df940a
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/matrix-org/synapse/commit/cb35df940a
3
reference_url https://github.com/matrix-org/synapse/releases/tag/v1.41.1
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/matrix-org/synapse/releases/tag/v1.41.1
4
reference_url https://github.com/matrix-org/synapse/security/advisories/GHSA-3x4c-pq33-4w3q
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/matrix-org/synapse/security/advisories/GHSA-3x4c-pq33-4w3q
5
reference_url https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-425.yaml
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://github.com/pypa/advisory-database/tree/main/vulns/matrix-synapse/PYSEC-2021-425.yaml
6
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF
7
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/
reference_id
reference_type
scores
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VHDEPCZ22GJFMZCWA2XZAGPOEV72POF/
8
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN
9
reference_url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/
reference_id
reference_type
scores
url https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXT7ID7DNBRN2TVTETU3SYQHJKEG6PXN/
10
reference_url https://nvd.nist.gov/vuln/detail/CVE-2021-39164
reference_id
reference_type
scores
0
value 3.1
scoring_system cvssv3.1
scoring_elements CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
1
value LOW
scoring_system generic_textual
scoring_elements
url https://nvd.nist.gov/vuln/detail/CVE-2021-39164
11
reference_url https://security.archlinux.org/AVG-2334
reference_id AVG-2334
reference_type
scores
0
value Medium
scoring_system archlinux
scoring_elements
url https://security.archlinux.org/AVG-2334
12
reference_url https://github.com/advisories/GHSA-3x4c-pq33-4w3q
reference_id GHSA-3x4c-pq33-4w3q
reference_type
scores
url https://github.com/advisories/GHSA-3x4c-pq33-4w3q
fixed_packages
0
url pkg:apk/alpine/synapse@1.41.1-r0?arch=armv7&distroversion=v3.18&reponame=community
purl pkg:apk/alpine/synapse@1.41.1-r0?arch=armv7&distroversion=v3.18&reponame=community
is_vulnerable false
affected_by_vulnerabilities
resource_url http://public2.vulnerablecode.io/packages/pkg:apk/alpine/synapse@1.41.1-r0%3Farch=armv7&distroversion=v3.18&reponame=community
aliases CVE-2021-39164, GHSA-3x4c-pq33-4w3q, PYSEC-2021-425
risk_score null
exploitability null
weighted_severity null
resource_url http://public2.vulnerablecode.io/vulnerabilities/VCID-7ga2-hq9p-ykct
Risk_scorenull
Resource_urlhttp://public2.vulnerablecode.io/packages/pkg:apk/alpine/synapse@1.41.1-r0%3Farch=armv7&distroversion=v3.18&reponame=community