# CVE-2026-115322: Bytebase before 3.16.0 Authorization Bypass via Rollout Service Task Run Handlers

Status: published. Published: 2026-10-22. Updated: 2026-11-05.

Bytebase before 3.16.0 contains an authorization bypass vulnerability in GetTaskRunLog, GetTaskRunSession and PreviewTaskRunRollback that allows authenticated users to access other projects' task runs by UID. Attackers with permission on one project can supply foreign task or task run UIDs to read execution logs, database session details, and rollback SQL from other projects.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/bytebase/bytebase/pull/19554
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulnCheck) — https://github.com/bytebase/bytebase/commit/bb553e8423b38c826cd7b1da5c7117080cc8705d

## Affected products and versions

- bytebase / bytebase (github.com/bytebase/bytebase): ≥ 0; < 3.16.0 (affected, semver); 3.16.0 (unaffected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 5.3 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N; source: CNA: VulnCheck

- CVSS 3.1: 4.3 (medium); CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N; source: CNA: VulnCheck

- CISA KEV: No listing in collected sources

- EPSS: 0.28% as of 2026-11-05; percentile 20.74%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-639

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/bytebase/bytebase/issues/19369 (CNA: VulnCheck; issue-tracking)

- https://github.com/bytebase/bytebase/pull/19554 (CNA: VulnCheck; patch, issue-tracking)

- https://github.com/bytebase/bytebase/commit/bb553e8423b38c826cd7b1da5c7117080cc8705d (CNA: VulnCheck; patch)

- https://github.com/bytebase/bytebase/releases/tag/3.16.0 (CNA: VulnCheck; release-notes)

- https://github.com/bytebase/bytebase/blob/3.15.1/backend/api/v1/rollout_service.go#L505 (CNA: VulnCheck; technical-description)

- https://github.com/bytebase/bytebase (CNA: VulnCheck; product)

- https://www.vulncheck.com/advisories/bytebase-before-3.16.0-authorization-bypass-via-rollout-service-task-run-handlers (CNA: VulnCheck; third-party-advisory)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-115322; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-115322; retrieved 2026-11-05; source updated Not reported

Revision: 0975ea414e344200389be229a59aa7604705874855bd3770a620999bf8089318

Canonical: https://y2.dev/cve/CVE-2026-115322

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.