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CVE-2026-112075Proof of concept (PoC) published · CISASuited to automated attack · CISA

unslothai unsloth sentence_transformer.py externally-controlled input to select classes or code

CVSS score

5.3

EPSS probability

%0.3

Risk score

0.0

Published

19 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

CVE-2026-112075 – UnsloTH FastSentenceTransformer Remote Code Injection

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

unsloth versions up to 0.1.501‑beta contain a flaw in FastSentenceTransformer._is_transformer_module_ref where manipulating the Type argument enables remote code execution. A public exploit exists. The vendor advises upgrading to 0.1.902‑beta, though patch confirmation is unavailable.

Why does it matter?

Remote code execution allows attackers to run arbitrary code on affected systems, leading to data compromise and service disruption.

What should be done?

  • Upgrade to 0.1.902‑beta per vendor advisory
  • Verify patch status from official sources
  • Monitor for malicious inputs
  • Apply network segmentation
  • Validate changes in a test environment
Chain of evidence and sources3 verified claims

CVE-2026-112075, FastSentenceTransformer._is_transformer_module_ref fonksiyonundaki Type argümanının manipülasyonu ile uzaktan kod yürütmeye izin verir.

S0 · daybreach-canonicalS1 · nvd

Bu zafiyet için kamuya açık bir istismar mevcuttur.

S0 · daybreach-canonicalS1 · nvd

Vendor, sorunu hafifletmek için 0.1.902‑beta sürümüne yükseltmeyi öneriyor; yama durumu resmi olarak doğrulanmadı.

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

A weakness has been identified in unslothai unsloth up to 0.1.501-beta. This affects the function FastSentenceTransformer._is_transformer_module_ref of the file unsloth/models/sentence_transformer.py. This manipulation of the argument Type causes use of externally-controlled input to select classes or code. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.1.902-beta is able to mitigate this issue. Patch name: de801746386a53a0cb26216e715a0af863b76ad9. The affected component should be upgraded.

CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

CWE: CWE-470

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-2026-112075 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1unslothaiunsloth 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
7.5CVSS V2—AV:N/AC:L/Au:N/C:P/I:P/A:PNVD
7.5CVSS V2_0—AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:CCVE CNA
6.3CVSS V31MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:LNVD
6.3CVSS V3_1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:CCVE CNA
6.3CVSS V3_0MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:CCVE CNA
5.3CVSS V4_0MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:PCVE CNA
2.1CVSS V40LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 verified

6 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source
cvelist

CNA çözüm referansı

Open source
cvelist

CNA çözüm referansı

Open source
reference

Yama veya çözüm referansı

Open source
reference

Yama veya çözüm referansı

Open source
reference

Yama veya çözüm referansı

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
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-2026-112075 is associated with the following CWEs:

CWE-470: Common Weakness Enumeration Entry CWE-470

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-2026-112075 weaknesses.

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

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
User—

Official Sources and Advisories

VDB-421754 | unslothai unsloth sentence_transformer.py externally-controlled input to select classes or codevendor-advisoryVDB-421754 | CTI Indicators (IOB, IOC, IOA)vendor-advisoryCVE-2026-112075 | CVE Analysis and Reportvendor-advisorySubmit #1009576 | Unsloth AI Unsloth up to 2026.9.11 (commit de801746386a53a0cb26216e715a0af863b76ad9) Unsafe Reflectionvendor-advisoryhttps://github.com/unslothai/unsloth/issues/12419vendor-advisoryhttps://github.com/unslothai/unsloth/pull/11560patchhttps://github.com/user-attachments/files/32908312/poc.zipvendor-advisoryhttps://github.com/unslothai/unsloth/commit/de801746386a53a0cb26216e715a0af863b76ad9patchhttps://github.com/unslothai/unsloth/releases/tag/v0.1.902-betapatchhttps://github.com/unslothai/unsloth/vendor-advisory

CVSS Vector Radar Chart

5.3 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.RequiredConfidentialityLowIntegrityNoneAvailabilityLow

Vulnerability Scoring Details

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionP
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)P
Availability (Erişilebilirlik)Low

Yama doğrulandı

6 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

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Weakness Type (CWE & CAPEC)

CWE-470

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