CVE-2026-5757 | Ollama GGUF Quantization memory leak

VDB-359326 · CVE-2026-5757 · GCVE-0-2026-5757 OLLAMA GGUF QUANTIZATION MEMORY LEAK HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.2 $0-$5k 1.94+ Summaryinfo A vulnerability, which was classified as problematic, was found in Ollama. Affected by this vulnerability is an unknown functionality of the component GGUF Quantization. Executing a manipulation can lead to memory leak. This vulnerability is handled as CVE-2026-5757. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability classified as problematic was found in Ollama (affected version not known). This vulnerability affects some unknown functionality of the component GGUF Quantization. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The advisory is available at kb.cert.org. This vulnerability was named CVE-2026-5757. The exploitation appears to be easy. The attack can be initiated remotely. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1499 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name Ollama CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.3 VulDB Meta Temp Score: 4.2 VulDB Base Score: 4.3 VulDB Temp Score: 4.2 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Memory leak CWE: CWE-401 / CWE-404 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/24/2026 Advisory disclosed 04/24/2026 +0 days VulDB entry created 04/24/2026 +0 days VulDB entry last update Sourcesinfo Advisory: kb.cert.org Status: Not defined CVE: CVE-2026-5757 (🔒) GCVE (CVE): GCVE-0-2026-5757 GCVE (VulDB): GCVE-100-359326 Entryinfo Created: 04/24/2026 09:07 Changes: 04/24/2026 09:07 (48) Complete: 🔍 Cache ID: 99:A79:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸