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CVE-2026-48595
Vulnerability in tesla (CVE-2026-48595)
Summary
vulnerability in tesla (CVE-2026-48595). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `1.18.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-48595** has been found in tesla.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade tesla to **1.18.3** or later.
If unsure, ask your IT team or search "tesla CVE-2026-48595" on the vendor's site.
CVE-2026-48595 (tesla) — CWE-178 /
Patched: `1.18.3` — apply immediately
Workaround: Normalize all header keys to lowercase before passing them to Tesla.
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-178) exists in tesla.
📍 Affected scope
tesla — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.18.3**.
🛡️ Workaround
Workaround: Normalize all header keys to lowercase before passing them to Tesla.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'tesla' .` 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 'tesla' . | 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 `tesla` を grep し、稼働しているサービス・バージョンを把握する。
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5Apply temporary workaround mitigate
Normalize all header keys to lowercase before passing them to Tesla.パッチが適用されるまでの応急処置として、Normalize all header keys to lowercase before passing them to Tesla. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade tesla to 1.18.3ステージング環境で 1.18.3 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
Hex
tesla
[{"type":"SEMVER","events":[{"introduced":"1.4.0"},{"fixed":"1.18.3"}]}]
References
- advisory https://github.com/elixir-tesla/tesla/security/advisories/GHSA-9m9w-gxf7-rh8m
- package https://hex.pm/packages/tesla
- patch https://github.com/elixir-tesla/tesla/commit/db963dba67651b9abd1fc420a1d9679cf6efe182
- web https://cna.erlef.org/cves/CVE-2026-48595.html
- web 6b3ad84c-e1a6-4bf7-a703-f496b71e49db