Vulnerability-Lookup

CVE-2026-18581 (GCVE-0-2026-18581)

Vulnerability from cvelistv5 – Published: 2026-08-03 00:30 – Updated: 2026-08-03 19:47

Title

ggml-org llama.cpp Jinja Minja Template parser.cpp assertion

Summary

A vulnerability was determined in ggml-org llama.cpp e15efe0. Affected by this issue is some unknown functionality of the file common/jinja/parser.cpp of the component Jinja Minja Template Parser. Executing a manipulation with the input {{9|9|{ can lead to reachable assertion. The attack requires local access. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Severity

4.8 (Medium)


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

3.3 (Low)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

3.3 (Low)


                        
                          CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-617 - Reachable Assertion

Assigner

VulDB

References

7 references

URL	Tags
https://vuldb.com/vuln/385409	vdb-entrytechnical-description
https://vuldb.com/vuln/385409/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18581	third-party-advisory
https://vuldb.com/submit/799118	third-party-advisory
https://github.com/ggml-org/llama.cpp/issues/25282	issue-tracking
https://drive.proton.me/urls/R8D8NGZ6Z0#C2cVZYn5z1Xc	exploit
https://github.com/ggml-org/llama.cpp/	product

Impacted products

1 product

Vendor	Product	Version
ggml-org	llama.cpp	Affected: e15efe0 cpe:2.3:a:ggml-org:llama.cpp::::::::

Credits

m00dy (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

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GHSA-3732-9C5P-7H79

Vulnerability from github – Published: 2026-08-03 03:31 – Updated: 2026-08-03 03:31

Details

Severity

3.3 (Low)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

1.9 (Low)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18581"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-03T01:16:43Z",
    "severity": "LOW"
  },
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  "id": "GHSA-3732-9c5p-7h79",
  "modified": "2026-08-03T03:31:54Z",
  "published": "2026-08-03T03:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18581"
    },
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      "url": "https://github.com/ggml-org/llama.cpp/issues/25282"
    },
    {
      "type": "WEB",
      "url": "https://drive.proton.me/urls/R8D8NGZ6Z0#C2cVZYn5z1Xc"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ggml-org/llama.cpp"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-18581"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/799118"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/385409"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/385409/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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",
      "type": "CVSS_V4"
    }
  ]
}

ubuntu-cve-2026-18581

Vulnerability from osv_ubuntu

Published

2026-08-04 00:00

Modified

2026-08-04 00:00

Summary

Details

Severity

3.3 (Low)


                    
                      CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

1.9 (Low)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-18581	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-18581	REPORT
	https://github.com/ggml-org/llama.cpp/issues/25282	REPORT
	https://drive.proton.me/urls/R8D8NGZ6Z0#C2cVZYn5z1Xc	REPORT
	https://github.com/ggml-org/llama.cpp/	REPORT
	https://vuldb.com/cve/CVE-2026-18581	REPORT
	https://vuldb.com/submit/799118	REPORT
	https://vuldb.com/vuln/385409	REPORT
	https://vuldb.com/vuln/385409/cti	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libllama0",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "llama.cpp",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "llama.cpp-examples",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "llama.cpp-tests",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "llama.cpp-tools",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "llama.cpp-tools-extra",
            "binary_version": "8681+dfsg-1"
          },
          {
            "binary_name": "python3-gguf",
            "binary_version": "8681+dfsg-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "llama.cpp",
        "purl": "pkg:deb/ubuntu/llama.cpp@8681+dfsg-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5882+dfsg-2",
        "8064+dfsg-1ubuntu1",
        "8681+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "A vulnerability was determined in ggml-org llama.cpp e15efe0. Affected by this issue is some unknown functionality of the file common/jinja/parser.cpp of the component Jinja Minja Template Parser. Executing a manipulation with the input {{9|9|{ can lead to reachable assertion. The attack requires local access. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.",
  "id": "UBUNTU-CVE-2026-18581",
  "modified": "2026-08-04T00:00:00Z",
  "published": "2026-08-04T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-18581"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-18581"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ggml-org/llama.cpp/issues/25282"
    },
    {
      "type": "REPORT",
      "url": "https://drive.proton.me/urls/R8D8NGZ6Z0#C2cVZYn5z1Xc"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/ggml-org/llama.cpp/"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/cve/CVE-2026-18581"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/submit/799118"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/385409"
    },
    {
      "type": "REPORT",
      "url": "https://vuldb.com/vuln/385409/cti"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-18581"
  ]
}

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-18581 (GCVE-0-2026-18581)

GHSA-3732-9C5P-7H79

ubuntu-cve-2026-18581

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature