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CVE-2026-45137
high
CVSS 8.2
Vulnerability in anchor-lang (CVE-2026-45137)
Summary
vulnerability in anchor-lang (CVE-2026-45137). Data can be tampered with by attackers. Mitigation: upgrade to `1.0.2` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-45137** has been found in anchor-lang.
Data can be tampered with by attackers. CVSS score: 8.2/10.
What to do: upgrade anchor-lang to **1.0.2** or later.
If unsure, ask your IT team or search "anchor-lang CVE-2026-45137" on the vendor's site.
CVE-2026-45137 (anchor-lang) — CWE-20 / CVSS v3 8.2
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: `1.0.2` — 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
**A vulnerability** (CWE-20) exists in anchor-lang.
📍 Affected scope
anchor-lang — .
🔥 Severity
Severity: High (CVSS 8.2/10). Data can be tampered with by attackers
🔧 How to fix
Update to **1.0.2**.
🛡️ 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 'anchor-lang' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'anchor-lang' . | 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 `anchor-lang` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade anchor-lang to 1.0.2ステージング環境で 1.0.2 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
rust
anchor-lang
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.2"}]}]
crates.io
anchor-lang
[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"fixed":"1.0.2"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-45137
- package https://github.com/solana-foundation/anchor
- package https://crates.io/crates/anchor-lang
- web https://github.com/solana-foundation/anchor/security/advisories/GHSA-c6rc-8jpp-2fgc
- web https://github.com/solana-foundation/anchor/releases/tag/v1.0.2
- web https://github.com/advisories/GHSA-c6rc-8jpp-2fgc
- web https://github.com/otter-sec/anchor/security/advisories/GHSA-c6rc-8jpp-2fgc
- web https://rustsec.org/advisories/RUSTSEC-2026-0144.html