CVE-2026-5757 (GCVE-0-2026-5757)
Vulnerability from cvelistv5 – Published: 2026-06-26 15:15 – Updated: 2026-06-26 18:38
VLAI
Title
There exists an unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine
Summary
Unauthenticated remote information disclosure vulnerability in Ollama's model quantization engine allows an attacker to read and exfiltrate the server's heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-06-26T15:52:23.093Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "https://www.kb.cert.org/vuls/id/518910"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-5757",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-26T18:37:59.802606Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-26T18:38:23.503Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Ollama",
"vendor": "Ollama AI",
"versions": [
{
"status": "affected",
"version": "v0.13.5"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Unauthenticated remote information disclosure vulnerability in Ollama\u0027s model quantization engine allows an attacker to read and exfiltrate the server\u0027s heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-125 Out-of-bounds Read",
"lang": "en"
}
]
},
{
"descriptions": [
{
"description": "CWE-416 Use After Free",
"lang": "en"
}
]
},
{
"descriptions": [
{
"description": "CWE-306 Missing Authentication for Critical Function",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-26T15:15:28.464Z",
"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"shortName": "certcc"
},
"references": [
{
"url": "https://kb.cert.org/vuls/id/518910"
},
{
"url": "https://ollama.com"
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "There exists an unauthenticated remote information disclosure vulnerability in Ollama\u0027s model quantization engine",
"x_generator": {
"engine": "VINCE 3.0.43",
"env": "prod",
"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-5757"
}
}
},
"cveMetadata": {
"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
"assignerShortName": "certcc",
"cveId": "CVE-2026-5757",
"datePublished": "2026-06-26T15:15:28.464Z",
"dateReserved": "2026-04-07T16:59:20.290Z",
"dateUpdated": "2026-06-26T18:38:23.503Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-5757",
"date": "2026-06-30",
"epss": "0.00551",
"percentile": "0.41865"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-5757\",\"sourceIdentifier\":\"cret@cert.org\",\"published\":\"2026-06-26T16:16:36.917\",\"lastModified\":\"2026-06-29T13:49:03.420\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Unauthenticated remote information disclosure vulnerability in Ollama\u0027s model quantization engine allows an attacker to read and exfiltrate the server\u0027s heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.\"}],\"affected\":[{\"source\":\"cret@cert.org\",\"affectedData\":[{\"vendor\":\"Ollama AI\",\"product\":\"Ollama\",\"versions\":[{\"version\":\"v0.13.5\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-06-26T18:37:59.802606Z\",\"id\":\"CVE-2026-5757\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"yes\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:ollama:ollama:*:*:*:*:*:*:*:*\",\"versionEndIncluding\":\"0.13.5\",\"matchCriteriaId\":\"2D2FE797-DC0D-42D8-9CEA-18CD363B877A\"}]}]}],\"references\":[{\"url\":\"https://kb.cert.org/vuls/id/518910\",\"source\":\"cret@cert.org\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://ollama.com\",\"source\":\"cret@cert.org\",\"tags\":[\"Product\"]},{\"url\":\"https://www.kb.cert.org/vuls/id/518910\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]}]}}",
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.kb.cert.org/vuls/id/518910\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2026-06-26T15:52:23.093Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-5757\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-26T18:37:59.802606Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-26T18:38:18.655Z\"}}], \"cna\": {\"title\": \"There exists an unauthenticated remote information disclosure vulnerability in Ollama\u0027s model quantization engine\", \"source\": {\"discovery\": \"UNKNOWN\"}, \"affected\": [{\"vendor\": \"Ollama AI\", \"product\": \"Ollama\", \"versions\": [{\"status\": \"affected\", \"version\": \"v0.13.5\"}]}], \"references\": [{\"url\": \"https://kb.cert.org/vuls/id/518910\"}, {\"url\": \"https://ollama.com\"}], \"x_generator\": {\"env\": \"prod\", \"engine\": \"VINCE 3.0.43\", \"origin\": \"https://cveawg.mitre.org/api/cve/CVE-2026-5757\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Unauthenticated remote information disclosure vulnerability in Ollama\u0027s model quantization engine allows an attacker to read and exfiltrate the server\u0027s heap memory, potentially leading to sensitive data exposure, further compromise, and stealthy persistence.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-125 Out-of-bounds Read\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-416 Use After Free\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"description\": \"CWE-306 Missing Authentication for Critical Function\"}]}], \"providerMetadata\": {\"orgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"shortName\": \"certcc\", \"dateUpdated\": \"2026-06-26T15:15:28.464Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-5757\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-26T18:38:23.503Z\", \"dateReserved\": \"2026-04-07T16:59:20.290Z\", \"assignerOrgId\": \"37e5125f-f79b-445b-8fad-9564f167944b\", \"datePublished\": \"2026-06-26T15:15:28.464Z\", \"assignerShortName\": \"certcc\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…