# CVE-2026-126995: tjake Jlama SafeTensorIndex.java SafeTensorIndex.loadWeights path traversal

Status: published. Published: 2026-11-12. Updated: 2026-11-12.

A vulnerability was found in tjake Jlama up to 0.8.4/0.9.0-beta. Affected by this vulnerability is the function SafeTensorIndex.loadWeights of the file jlama-core/src/main/java/com/github/tjake/jlama/safetensors/SafeTensorIndex.java. Performing a manipulation of the argument weight_map results in path traversal. The attack may be initiated remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- tjake / Jlama: 0.8.0 (affected); 0.8.1 (affected); 0.8.2 (affected); 0.8.3 (affected); 0.8.4 (affected); 0.9.0-beta (affected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); 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; source: CNA: VulDB

- CVSS 3.1: 6.3 (medium); CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 3.0: 6.3 (medium); CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C; source: CNA: VulDB

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C; source: CNA: VulDB

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-22

## Exploit evidence

- exploit: https://github.com/user-attachments/files/33599742/poc.zip (CNA: VulDB)

## References

- https://vuldb.com/vuln/436294 (CNA: VulDB; vdb-entry, technical-description)

- https://vuldb.com/vuln/436294/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-126995 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1040636 (CNA: VulDB; third-party-advisory)

- https://github.com/tjake/Jlama/issues/211 (CNA: VulDB; issue-tracking)

- https://github.com/user-attachments/files/33599742/poc.zip (CNA: VulDB; exploit)

- https://github.com/tjake/Jlama/ (CNA: VulDB; product)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-126995; retrieved 2026-11-12; source updated 2026-11-12

Revision: 848a448fce56fb4119f8d8f544939a070b8a74959b7ec3211675a91f1424d8d0

Canonical: https://y2.dev/cve/CVE-2026-126995

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