CVE Explorer
CVE-2026-34824
Mesop is a Python-based UI framework that allows users to build web applications. From version 1.2.3 to before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework. An unauthenticated attacker can send a rapid succession of WebSocket messages, forcing the server to spawn an unbounded number of operating system threads. This leads to thread exhaustion and Out of Memory (OOM) errors, causing a complete Denial of Service (Do
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"mesop","vendor":"mesop-dev","versions":[{"status":"affected","version":">= 1.2.3, < 1.2.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /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:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/mesop-dev/mesop/commit/760a2079b5c609038c826d24dfbcf9b0be98d987","tags":["x_refsource_MISC"],"url":"https://github.com/mesop-dev/mesop/commit/760a2079b5c609038c826d24dfbcf9b0be98d987"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /containers/cna/references/1
{"name":"https://github.com/mesop-dev/mesop/releases/tag/v1.2.5","tags":["x_refsource_MISC"],"url":"https://github.com/mesop-dev/mesop/releases/tag/v1.2.5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://github.com/mesop-dev/mesop/security/advisories/GHSA-3jr7-6hqp-x679"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /containers/adp/0/references/0
{"name":"https://github.com/mesop-dev/mesop/security/advisories/GHSA-3jr7-6hqp-x679","tags":["x_refsource_CONFIRM"],"url":"https://github.com/mesop-dev/mesop/security/advisories/GHSA-3jr7-6hqp-x679"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:83c4a75ed536d1a6b316cad2cb140fb74f2eaaddafc9e819cda2713795ddf978 · sha256:543cdd8eed4a3d6d… · /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.