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CVE-2026-41861VulnerabilityPublished

BOSH-Ecosystem / BOSH · Path Traversal

Source GCVE Database

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Authoritative record:CVE-2026-41861· Medium 4.2

Not known to be exploited · CVSS 4.2 Medium : upgrade to 2.847.0 when convenient.

Data as of 6 Nov 2026, 23:24 UTC

CVSS 3.1 base score
4.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.847.0
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

What to do

Upgrade BOSH to 2.847.0.

Affected software

ProductAffectedFixed in
CloudFoundry FoundationBOSHAffected
  • <2.847.0
Fixed in
  • 2.847.0

AI-suggested

If you cannot patch yet, restrict access to IaaS metadata services to trusted entities only to reduce the attack surface.

Description

A path traversal vulnerability in the BOSH agent allows an attacker with access to IaaS metadata to cause the agent to write a root-owned file with a partially attacker-controlled content to any path ending in .network. The vulnerability also permits creation of missing parent directories with mode 0777 via network alias on Ubuntu systems. This affects all BOSH agent versions prior to v2.847.0, including jammy versions up to v1.1202 and noble versions up to v1.364.

References

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