CVE-2024-23832

criticalpriority · track · 40EPSS 0.025 · 84 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

2.45% (84th) EPSS

CVSS 9.8 · critical

Is it mine?

17 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.4criticalAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.4criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · ENISA EU

v3.19.4criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:Hsecondary · security-advisories@github.comexploitability 3.9 · impact 5.5

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-290USCWE-290USCWE-346US

affected products (17)

Products and version ranges known to be affected.

mastodon mastodon≤ < 3.5.17enisa_euvdEU
mastodon mastodonall versionsenisa_euvdEU
mastodon mastodon4.0.0, → 4.0.13enisa_euvdEU
mastodon mastodon4.1.0, → 4.1.13enisa_euvdEU
mastodon mastodon4.2.0, → 4.2.5enisa_euvdEU
Mastodon gGmbH Mastodon≤ 3.5.17fstec_bduRU
Mastodon gGmbH Mastodon4.0.0 → 4.0.13fstec_bduRU
Mastodon gGmbH Mastodon4.1.0 → 4.1.13fstec_bduRU
Mastodon gGmbH Mastodon4.2.0 → 4.2.5fstec_bduRU
joinmastodon mastodon< 3.5.17nvdUScpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*
joinmastodon mastodon4.0.0 → 4.0.13nvdUScpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*
joinmastodon mastodon4.1.0 → 4.1.13nvdUScpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*
joinmastodon mastodon4.2.0 → 4.2.5nvdUScpe:2.3:a:joinmastodon:mastodon:*:*:*:*:*:*:*:*
Bitnami mastodon< 3.5.17osvUSpkg:bitnami/mastodon
Bitnami mastodon4.0.0 → 4.0.13osvUSpkg:bitnami/mastodon
Bitnami mastodon4.1.0 → 4.1.13osvUSpkg:bitnami/mastodon
Bitnami mastodon4.2.0 → 4.2.5osvUSpkg:bitnami/mastodon

advisories (1)

Vendor and ecosystem advisories describing this.

BIT-mastodon-2024-23832Mastodon Remote user impersonation and takeover2024-03-06vendor · osvUS
Mastodon is a free, open-source social network server based on ActivityPub Mastodon allows configuration of LDAP for authentication. Due to insufficient origin validation in all Mastodon, attackers can impersonate and take over any remote account. Every Mastodon version prior to 3.5.17 is vulnerable, as well as 4.0.x versions prior to 4.0.13, 4.1.x version prior to 4.1.13, and 4.2.x versions prior to 4.2.5.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu osv nvd NVD CVE.org MITRE

published 2024-02-01modified 2026-06-17

references (9)

External citations — patches, advisories, analysis.

scry

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