--- cve: "CVE-2026-16651" severity: "HIGH" cvss: 8.7 epss: "19.1%" vendor: "Temporal Technologies, Inc." kev: false exploited: false published: "2026-09-21 12:17:10" tags: [cve, security, high] source: tsecurity.de CVE-Dossier exported: "2026-09-22T08:18:02+02:00" --- # CVE-2026-16651 > 8.7 HIGH · 🧪 PoC ## Beschreibung temporalio/sqlparser can panic when Parse, ParseStrictDDL, or ParseNext processes a MySQL version comment whose contents are empty or consist only of one to five decimal digits. ExtractMysqlComment does not check the -1 result returned by strings.IndexFunc before using it as a slice boundary. The resulting Go runtime panic propagates unless the caller recovers it on the parsing goroutine, so applications that parse attacker-controlled SQL can terminate. Temporal Server exposes the affected parser through ListWorkers. When that API is enabled, an authenticated caller with namespace read permission can submit a malformed query that terminates the receiving Matching process. Repeated requests can sustain a denial of service. The issue affects availability only; no confidentiality or integrity impact was identified. ## CVSS-Vektor ``` CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Gering | bad | | PR Privilegien | Keine | bad | | UI Interaktion | Keine | bad | ## Patch verfügbar (OSV) - 6263d75ecb887e4b11e67dab867c8af07260f36b (Commit) - 8c78934b67fbac43d2ea7f8ada448c539780584d (Commit) ## Referenzen - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-16651) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_