Vulnerability-Lookup

GHSA-GG57-WG6F-C8VG

Vulnerability from github – Published: 2026-06-01 21:30 – Updated: 2026-06-01 21:30

Details

CodexBar prior to 0.32.0 contains a privilege escalation vulnerability in the CLI installer that allows local attackers to execute arbitrary commands as root by exploiting a race condition in temporary file handling. The installer creates a temporary file with mktemp, writes a privileged shell payload into it, and executes it with administrator privileges via bash, allowing a same-user local process to rewrite the installer body before the administrator prompt is approved, causing attacker-controlled commands to run as root.

Severity

7.1 (High)


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

7.5 (High)


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

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-49134"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-377"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-01T21:16:46Z",
    "severity": "HIGH"
  },
  "details": "CodexBar prior to 0.32.0 contains a privilege escalation vulnerability in the CLI installer that allows local attackers to execute arbitrary commands as root by exploiting a race condition in temporary file handling. The installer creates a temporary file with mktemp, writes a privileged shell payload into it, and executes it with administrator privileges via bash, allowing a same-user local process to rewrite the installer body before the administrator prompt is approved, causing attacker-controlled commands to run as root.",
  "id": "GHSA-gg57-wg6f-c8vg",
  "modified": "2026-06-01T21:30:45Z",
  "published": "2026-06-01T21:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49134"
    },
    {
      "type": "WEB",
      "url": "https://github.com/steipete/CodexBar/pull/1222"
    },
    {
      "type": "WEB",
      "url": "https://github.com/steipete/CodexBar/commit/dbc944d46cd4cf7877d1ca47c44556fe573b46e8"
    },
    {
      "type": "WEB",
      "url": "https://github.com/steipete/CodexBar/releases/tag/v0.32.0"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/codexbar-privilege-escalation-via-cli-installer-temp-file"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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"
    }
  ]
}

CVE-2026-49134 (GCVE-0-2026-49134)

Vulnerability from cvelistv5 – Published: 2026-06-01 18:53 – Updated: 2026-07-14 21:33 X_Open Source

Title

CodexBar < 0.32.0 Privilege Escalation via CLI Installer Temp File

Summary

Severity

7.5 (High)


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

7.1 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-02 12:38 UTC

CWE

CWE-377 - Insecure Temporary File

Assigner

VulnCheck mitre root

References

4 references

URL	Tags
https://github.com/steipete/CodexBar/releases/tag…	release-notes
https://github.com/steipete/CodexBar/pull/1222	issue-tracking
https://github.com/steipete/CodexBar/commit/dbc94…	patch
https://www.vulncheck.com/advisories/codexbar-pri…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
steipete	CodexBar	Affected: 0 , < 0.32.0 (semver)

Date Public

2026-05-30 00:00

Credits

Chia Min Jun Lennon

Show details on NVD website

JSON

To clipboard

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                  },
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                "timestamp": "2026-06-02T12:38:47.403866Z",
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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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.