CVE-2026-18157Disclosure

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misinterpreted as command options by apt-get. Successful exploitation could lead to remote code execution (RCE) with root privileges, enabling the attacker to fully compromise the system's integrity, confidentiality, and availability.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-88

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 2 classified signals
  • Peaked 1d ago at 1 mentions (2026-07-31); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-31: 1Mentions · 2026-08-01: 1Technical Details · 2026-07-31: 107-3108-01
Signal classification1 categories
Disclosure
2100.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • VulDB 🛡@vuldb
    Disclosure

    A new vulnerability with increased severity was disclosed for Red Hat Enterprise Linux and yggdrasil-worker-package-manager (CVE-2026-18157) https://vuldb.com/vuln/384987

    Post summary

    A new vulnerability (CVE-2026-18157) affecting Red Hat Enterprise Linux and yggdrasil-worker-package-manager has been disclosed with increased severity; no PoC, exploit, or patch details are provided.

    00000103
    2.3K followersView on X
  • Upwind Security MDR@UpwindMDR
    Disclosure

    🚨High - yggdrasil-worker-package-manager APT Backend apt-get Argument Injection (CVE-2026-18157) In yggdrasil-worker-package-manager's APT backend, unsanitized package names are passed to apt-get; names starting with '-' are treated as command options, enabling argument injection. A local attacker with system access can trigger apt-get option abuse to execute attacker-controlled commands as root, leading to full system compromise. Normal package names not beginning with '-' are not affected. 👉Affected: yggdrasil-worker-package-manager (all versions)

    Post summary

    The post announces a high‑severity CVE-2026-18157 involving unsanitized apt‑get argument injection in yggdrasil‑worker‑package‑manager, providing technical details but no PoC, exploit code, patch, or evidence of active exploitation.

    0000066
    275 followersView on X

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