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CVE-2026-108789Proof of concept (PoC) published · CISA

deepseek-ai deepseek-harness dsh-workflow-worker-thread agent behavioral workflow

CVSS score

5.1

EPSS probability

%0.2

Risk score

0.0

Published

1 d ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

Resmî kaynaklarda yeterli kanıt bulunamadı. Bu sonuç “yama yok” anlamına gelmez.

Impact on My Inventory

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Behavioral Workflow Vulnerability in CVE-2026-108789

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

A vulnerability has been identified in deepseek-ai deepseek-harness affecting the dsh-workflow-worker-thread component. This remotely exploitable issue leads to the enforcement of behavioral workflow. A public exploit is available.

Why does it matter?

This vulnerability can be exploited remotely and may cause limited impacts on confidentiality, integrity, and availability. The vendor has not responded to early disclosures and the patch status remains unknown.

What should be done?

  • Follow vendor advisories
  • Check for update information
  • Review privilege requirements
Chain of evidence and sources3 verified claims

deepseek-ai deepseek-harness bileşeninde dsh-workflow-worker-thread agent fonksiyonunu etkileyen bir zafiyet bulunmaktadır.

S0 · daybreach-canonicalS1 · cvelist

Zafiyet uzaktan gerçekleştirilebilir ve halka açık bir exploiti bulunmaktadır.

S0 · daybreach-canonicalS1 · cvelist

Yama durumu incelemelerde belirsiz olarak değerlendirilmiştir.

S0 · daybreach-canonical
Show the technical text from the sources

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 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

CWE: CWE-841, CWE-840

Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-108789 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1deepseek-aideepseek-harness View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
6.5CVSS V2_0—AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:URCVE CNA
6.5CVSS V2—AV:N/AC:L/Au:S/C:P/I:P/A:PNVD
5.5CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RCVE CNA
5.5CVSS V3_0MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:RCVE CNA
5.5CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:LNVD
5.1CVSS V4_0MEDIUMCVSS: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:PCVE CNA
2.0CVSS V40LOWCVSS: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:XNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-108789 is associated with the following CWEs:

CWE-841: Common Weakness Enumeration Entry CWE-841CWE-840: Common Weakness Enumeration Entry CWE-840

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-108789 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsLow
User—

Official Sources and Advisories

VDB-416568 | deepseek-ai deepseek-harness dsh-workflow-worker-thread agent behavioral workflowvendor-advisoryVDB-416568 | CTI Indicators (IOB, IOC, IOA)vendor-advisoryCVE-2026-108789 | CVE Analysis and Reportvendor-advisorySubmit #959699 | 杭州深度求索人工智能基础技术研究有限公司 DeepSeek Harness 0.1.1-rc.2 逻辑缺陷vendor-advisoryhttps://github.com/deepseek-ai/deepseek-harness/discussions/243vendor-advisoryhttps://mcniyfj5bw9b.feishu.cn/docx/M5H6d9AbioNftYxwk9CchJgGnHcvendor-advisoryhttps://github.com/deepseek-ai/deepseek-harness/vendor-advisory

CVSS Vector Radar Chart

5.1 / 10
Attack VectorNetworkComplexityLowPrivilegesLowUser Interact.RequiredConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

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
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow privileges
User InteractionP
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)P
Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

D
deepseek-ai logo
deepseek-ai

Weakness Type (CWE & CAPEC)

CWE-841 CWE-840

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