BIT-mastodon-2026-48028

See a problem?
Import Source
https://github.com/bitnami/vulndb/tree/main/data/mastodon/BIT-mastodon-2026-48028.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-mastodon-2026-48028
Aliases
Published
2026-07-06T05:55:20Z
Modified
2026-07-08T08:11:10Z
Summary
Mastodon: Removal of integrity-protected JSON entries from signed activities
Details

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors to remove JSON entries from valid signed activities from a third-party actor. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.

Database specific 
{
    "cpes": [
        "cpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}
References

Affected packages

Bitnami / mastodon

Package

Name
mastodon
Purl
pkg:bitnami/mastodon

Severity

  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.3.23
Introduced
4.4.0
Fixed
4.4.17
Introduced
4.5.0
Fixed
4.5.10

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/mastodon/BIT-mastodon-2026-48028.json"