Sign in Sign up
JA · EN · FR
SecPulse
Categories
CVE-2022-26652

Path Traversal in github.com/nats-io/nats-server/v2 (CVE-2022-26652)

Summary

Path traversal in github.com/nats-io/nats-server/v2 (CVE-2022-26652). Data can be tampered with by attackers. Mitigation: upgrade to 2.7.4 or later.

Original description

The description as published by the source.

(This document is canonically: )

Background

NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.

JetStream is the optional RAFT-based resilient persistent feature of NATS.

Problem Description

The JetStream streams can be backed up and restored via NATS. The backup format is a tar archive file. Inadequate checks on the filenames within the archive file permit a so-called "Zip Slip" attack in the stream restore.

NATS nats-server through 2022-03-09 (fixed in release 2.7.4) did not correctly sanitize elements of the archive file, thus a user of NATS
could cause the NATS server to write arbitrary content to an attacker-controlled filename.

Affected versions

NATS Server:

  • 2.2.0 up to and including 2.7.3.
    • Introduced with JetStream Restore functionality
  • Fixed with nats-io/nats-server: 2.7.4
  • Docker image: nats
  • NB users of OS package files from our releases: a change in goreleaser defaults, discovered late in the release process, moved the install directory from /usr/local/bin to /usr/bin; we are evaluating the correct solution for subsequent releases, but not recutting this release.

NATS Streaming Server

  • 0.15.0 up to and including 0.24.2
  • Fixed with nats-io/nats-streaming-server: 0.24.3
  • Embeds a nats-server, but this server is the old approach which JetStream replaces, so unlikely (but not impossible) to be
    configured with JS support

Workarou…

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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-2022-26652 has been found in github.com/nats-io/nats-server/v2.
Data can be tampered with by attackers.
What to do: upgrade github.com/nats-io/nats-server/v2 to 2.7.4 or later.
If unsure, ask your IT team or search "github.com/nats-io/nats-server/v2 CVE-2022-26652" on the vendor's site.

CVE-2022-26652 (github.com/nats-io/nats-server/v2) — CWE-22
Attack vector: remote (network-reachable) / no user interaction
Patched: 2.7.4 — 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.

❓ What is the problem

Path traversal (CWE-22) exists in github.com/nats-io/nats-server/v2.

📍 Affected scope

Check the vendor advisory for the affected versions of github.com/nats-io/nats-server/v2.

🔥 Severity

Severity: ?. Data can be tampered with by attackers.

🔧 How to fix

Update to 2.7.4.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/nats-io/nats-server/v2' . 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

  1. 1
    Identify exposure identify 
    grep -r 'github.com/nats-io/nats-server/v2' . | 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/nats-io/nats-server/v2 を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch 
    Upgrade github.com/nats-io/nats-server/v2 to 2.7.4

    ステージング環境で 2.7.4 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。

  3. 3
    Post-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

Go github.com/nats-io/nats-server/v2
[{"type":"SEMVER","events":[{"introduced":"2.2.0"},{"fixed":"2.7.4"}]}]
Go github.com/nats-io/nats-streaming-server
[{"type":"SEMVER","events":[{"introduced":"0.15.0"},{"fixed":"0.24.3"}]}]

References

We use cookies for analytics and ad measurement. This setting applies to all Game co., Ltd. sites. Details