CVE Explorer
CVE-2026-23962
Mastodon is a free, open-source social network server based on ActivityPub. Mastodon versions before v4.3.18, v4.4.12, and v4.5.5 do not have a limit on the maximum number of poll options for remote posts, allowing attackers to create polls with a very large amount of options, greatly increasing resource consumption. Depending on the number of poll options, an attacker can cause disproportionate resource usage in both Mastodon servers and clients, potentially causing Denial of Service either ser
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"mastodon","vendor":"mastodon","versions":[{"status":"affected","version":"< 4.3.18"},{"status":"affected","version":">= 4.4.0, < 4.4.12"},{"status":"affected","version":">= 4.5.0, < 4.5.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/mastodon/mastodon/releases/tag/v4.3.18","tags":["x_refsource_MISC"],"url":"https://github.com/mastodon/mastodon/releases/tag/v4.3.18"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/references/1
{"name":"https://github.com/mastodon/mastodon/releases/tag/v4.4.12","tags":["x_refsource_MISC"],"url":"https://github.com/mastodon/mastodon/releases/tag/v4.4.12"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/references/2
{"name":"https://github.com/mastodon/mastodon/releases/tag/v4.5.5","tags":["x_refsource_MISC"],"url":"https://github.com/mastodon/mastodon/releases/tag/v4.5.5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/references/3
{"name":"https://github.com/mastodon/mastodon/security/advisories/GHSA-gg8q-rcg7-p79g","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mastodon/mastodon/security/advisories/GHSA-gg8q-rcg7-p79g"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f091a02229f33b5e5ac32b921ec91e1ec2a7b41e45ea2529e360c803f6ff85cc · sha256:417454d5e1db2e4a… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.