CVE-2026-25540

Katalog CVE

CVSS 6.5 · Medium EPSS 0,46%

Kerentanan Use of Cache Containing Sensitive Information pada joinmastodon mastodon. Skor CVSS 3.1 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

Mastodon is a free, open-source social network server based on ActivityPub. Prior to versions 4.3.19, 4.4.13, 4.5.6, Mastodon is vulnerable to web cache poisoning via `Rails.cache. When AUTHORIZED_FETCH is enabled, the ActivityPub endpoints for pinned posts and featured hashtags have contents that depend on the account that signed the HTTP request. However, these contents are stored in an internal cache and reused with no regards to the signing actor. As a result, an empty response generated for a blocked user account may be served to requests from legitimate non-blocked actors, or conversely, content intended for non-blocked actors may be returned to blocked actors. This issue has been patched in versions 4.3.19, 4.4.13, 4.5.6.

Rincian

Terbit di NVD

4 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

6.5 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-524: Use of Cache Containing Sensitive Information

EPSS (30 hari)

0,46% peluang dieksploitasi; lebih tinggi dari 38,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/mastodon/mastodon/security/advisories/GHSA-ccpr-m53r-mfwr advisory vendor