Authorization Flaw in github.com/OliveTin/OliveTin (CVE-2026-67439)
Summary
Vulnerability in github.com/OliveTin/OliveTin (CVE-2026-67439). Risk of unauthorized operations or information disclosure. Exploitable via StartActionAndWait. Mitigation: upgrade to 0.0.0-20260708085316-e421780c9885 or later.
Original description
The description as published by the source.
Summary
The synchronous execution RPCs StartActionAndWait and StartActionByGetAndWait return the full LogEntry for the just-executed action without checking whether the caller is allowed to read that action's logs.
OliveTin's ACL model separates exec from logs. A deployment can intentionally allow a user to run an action while denying access to its historical or live output. That separation is enforced in GetLogs, GetActionLogs, ExecutionStatus, and EventStream, but it is not enforced in the synchronous ...AndWait endpoints.
As a result, any user who can execute an action through these endpoints can read the action output immediately even when the action's ACL explicitly sets logs:false.
Details
OliveTin defines separate per-action permissions:
// service/internal/config/config.go
type PermissionsList struct {
View bool `koanf:"view"`
Exec bool `koanf:"exec"`
Logs bool `koanf:"logs"`
Kill bool `koanf:"kill"`
}
The normal log and streaming paths correctly enforce logs permission:
// service/internal/api/api.go
func (api *oliveTinAPI) isLogEntryAllowed(e *executor.InternalLogEntry, user *authpublic.AuthenticatedUser) bool {
if user == nil || !isValidLogEntry(e) {
return false
}
return acl.IsAllowedLogs(api.cfg, user, e.Binding.Action)
}
That check is used by:
GetLogsGetActionLogsExecutionStatusEventStream
However, the synchronous execution endpoints directly retur…
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-67439 has been found in github.com/OliveTin/OliveTin.
Attackers can target a specific entry point like StartActionAndWait over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: upgrade github.com/OliveTin/OliveTin to 0.0.0-20260708085316-e421780c9885 or later.
If unsure, ask your IT team or search "github.com/OliveTin/OliveTin CVE-2026-67439" on the vendor's site.
CVE-2026-67439 (github.com/OliveTin/OliveTin) — CWE-863 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Attack surface: StartActionAndWait / StartActionByGetAndWait / LogEntry / exec
Patched: 0.0.0-20260708085316-e421780c9885 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Incorrect authorization (CWE-863) exists in github.com/OliveTin/OliveTin. Attackers reach the vulnerable code path via StartActionAndWait.
Check the vendor advisory for the affected versions of github.com/OliveTin/OliveTin. Attack surface: StartActionAndWait / StartActionByGetAndWait / LogEntry / exec.
Severity: Medium (CVSS 4.3/10). Risk of unauthorized operations or information disclosure.
Update to 0.0.0-20260708085316-e421780c9885.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/OliveTin/OliveTin' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'github.com/OliveTin/OliveTin' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
github.com/OliveTin/OliveTinを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade github.com/OliveTin/OliveTin to 0.0.0-20260708085316-e421780c9885ステージング環境で 0.0.0-20260708085316-e421780c9885 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com