CVE-2026-108789
A vulnerability was identified in deepseek-ai deepseek-harness up to 0.1.1-rc.2. This affects the function agent of the component dsh-workflow-worker-thread. The manipulation leads to enforcement of behavioral workflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS
- Base score
- 2
- Version
- 4.0
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days
- 0.18 %
- Percentile among all scored CVEs
- 7
- Score date
- 10/21/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1203Exploitation for Client Executionexecution75 %
Vector CVSS con UI:R (interacción del usuario) y AV:N (red) sugiere T1203. Descripción vaga: 'manipulación' y 'enforcement' sin detallar acceso o ejecución. CWE-840/841 genéricos (patrón de comportamiento). Confianza moderada por falta de detalle técnico explícito.
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
ATT&CK mitigations that cover these techniques
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-840, CWE-841
References
Show 7 references
- https://github.com/deepseek-ai/deepseek-harness/
- https://github.com/deepseek-ai/deepseek-harness/discussions/243
- https://mcniyfj5bw9b.feishu.cn/docx/M5H6d9AbioNftYxwk9CchJgGnHc
- https://vuldb.com/cve/CVE-2026-108789
- https://vuldb.com/submit/959699
- https://vuldb.com/vuln/416568
- https://vuldb.com/vuln/416568/cti
Raw JSON (NVD)
Show
{
"id": "CVE-2026-108789",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
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"options": [
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},
{
"automatable": "no"
},
{
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}
],
"version": "2.0.3",
"timestamp": "2026-10-13T14:22:30.481471Z"
}
}
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"cvssMetricV2": [
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"accessVector": "NETWORK",
"vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
"authentication": "SINGLE",
"integrityImpact": "PARTIAL",
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"availabilityImpact": "PARTIAL",
"confidentialityImpact": "PARTIAL"
},
"acInsufInfo": false,
"impactScore": 6.4,
"baseSeverity": "MEDIUM",
"obtainAllPrivilege": false,
"exploitabilityScore": 8,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
],
"cvssMetricV31": [
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"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
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"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
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"cvssMetricV40": [
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"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 2,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "LOW",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "PROOF_OF_CONCEPT",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "PASSIVE",
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"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "LOW",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "LOW",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
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"affected": [
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"affectedData": [
{
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],
"vendor": "deepseek-ai",
"modules": [
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],
"product": "deepseek-harness",
"versions": [
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"version": "0.1.1-rc.0"
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{
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"version": "0.1.1-rc.1"
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{
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"version": "0.1.1-rc.2"
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],
"published": "2026-10-12T03:17:17.820",
"references": [
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"source": "cna@vuldb.com"
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{
"url": "https://github.com/deepseek-ai/deepseek-harness/discussions/243",
"source": "cna@vuldb.com"
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{
"url": "https://mcniyfj5bw9b.feishu.cn/docx/M5H6d9AbioNftYxwk9CchJgGnHc",
"source": "cna@vuldb.com"
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{
"url": "https://vuldb.com/cve/CVE-2026-108789",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/submit/959699",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/vuln/416568",
"source": "cna@vuldb.com"
},
{
"url": "https://vuldb.com/vuln/416568/cti",
"source": "cna@vuldb.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "cna@vuldb.com",
"description": [
{
"lang": "en",
"value": "CWE-840"
},
{
"lang": "en",
"value": "CWE-841"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was identified in deepseek-ai deepseek-harness up to 0.1.1-rc.2. This affects the function agent of the component dsh-workflow-worker-thread. The manipulation leads to enforcement of behavioral workflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way."
}
],
"lastModified": "2026-10-13T15:17:32.560",
"sourceIdentifier": "cna@vuldb.com"
}