CVE intelligence and bounded remediation

CVE-2017-16857 — Atlassian Bitbucket Auto Unapprove Plugin security vulnerability

High CVSS 8.5

It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket.

Severity
High
CVSS
8.5 (3.0)
Published
2017-12-05
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-362

Affected products

  • atlassian / bitbucket_auto_unapprove_plugin / 1.0.0
  • atlassian / bitbucket_auto_unapprove_plugin / 1.1.0
  • atlassian / bitbucket_auto_unapprove_plugin / 1.2.0
  • atlassian / bitbucket_auto_unapprove_plugin / 2.0.1
  • atlassian / bitbucket_auto_unapprove_plugin / 2.0.2
  • atlassian / bitbucket_auto_unapprove_plugin / 2.0.4

Showing 6 representative product identities from 11 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Race condition, TOCTOU, and lifecycle synchronization

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map concurrent actors, shared state, lock boundaries, signals, callbacks, retries, and check-then-use sequences in the affected path.
  • Determine whether untrusted users can influence timing, object names, filesystem state, or repeated state transitions.
  • Identify clustered and multi-process behavior that repository-local tests may not represent.

Remediate safely

  • Make the sensitive state transition atomic or protect it with a consistently ordered synchronization primitive.
  • Perform authorization and invariant checks on the same authoritative object and transaction used for the operation.
  • Use unique private resources, safe ownership transfer, and idempotent operations; add deterministic concurrency regression tests.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.