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CVE-2026-1519
high
CVSS 7.5
Vulnerability in isc (CVE-2026-1519)
Summary
vulnerability in isc (CVE-2026-1519). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-1519** has been found in isc.
Risk of unauthorized operations or information disclosure. CVSS score: 7.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "isc CVE-2026-1519" on the vendor's site.
CVE-2026-1519 (isc) — CWE-606 / CVSS v3 7.5
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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-606) exists in isc.
📍 Affected scope
isc — .
🔥 Severity
Severity: High (CVSS 7.5/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'isc' .` 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
-
1Identify exposure identify
grep -r 'isc' . | 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 `isc` を grep し、稼働しているサービス・バージョンを把握する。
-
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。
References
- web https://downloads.isc.org/isc/bind9/9.18.47
- web https://downloads.isc.org/isc/bind9/9.20.21
- web https://downloads.isc.org/isc/bind9/9.21.20
- web https://kb.isc.org/docs/cve-2026-1519
- web https://lists.debian.org/debian-lts-announce/2026/04/msg00008.html
- web https://nvd.nist.gov/vuln/detail/CVE-2026-1519
- web https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1519.json
- web https://bugzilla.redhat.com/show_bug.cgi?id=2451305
- web https://access.redhat.com/security/cve/CVE-2026-1519
- web https://access.redhat.com/errata/RHSA-2026:8352
- web https://access.redhat.com/errata/RHSA-2026:8312
- web https://access.redhat.com/errata/RHSA-2026:8155
- web https://access.redhat.com/errata/RHSA-2026:8075
- web https://access.redhat.com/errata/RHSA-2026:7915
- web https://access.redhat.com/errata/RHSA-2026:6935
- web https://access.redhat.com/errata/RHSA-2026:29110
- web https://access.redhat.com/errata/RHSA-2026:25214
- web https://access.redhat.com/errata/RHSA-2026:25171
- web https://access.redhat.com/errata/RHSA-2026:25083
- web https://access.redhat.com/errata/RHSA-2026:24934
- web https://access.redhat.com/errata/RHSA-2026:24851
- web https://access.redhat.com/errata/RHSA-2026:24500
- web https://access.redhat.com/errata/RHSA-2026:16064
- web https://access.redhat.com/errata/RHSA-2026:16060
- web https://access.redhat.com/errata/RHSA-2026:15890
- web https://access.redhat.com/errata/RHSA-2026:11372
- web https://access.redhat.com/errata/RHSA-2026:11371
- web https://github.com/advisories/GHSA-84m6-p53c-x4wp
- web https://access.redhat.com/errata/RHSA-2026:29863