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Vulnerabilities

Vulnerability · CVE-2026-96888

Named may terminate unexpectedly when a redirect zone is used with strict QNAME minimization

Published Oct 21, 2026 · catalog updated Oct 23, 2026 · ISC BIND 9

Last checked Nov 1, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-96888. EPSS is 0.46%. Act only if a listed version of ISC BIND 9 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.46%
Remediation
Advisory link
Affected products
Alpine:v3.22 bind · Alpine:v3.23 bind · Alpine:v3.24 bind · vendor ISC BIND 9

A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Alpine:v3.22 bind0 → 9.20.30-r0
  • Alpine:v3.23 bind0 → 9.20.30-r0
  • Alpine:v3.24 bind0 → 9.20.30-r0
  • vendor ISC BIND 9version unspecified

How to fix CVE-2026-96888

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-96888. EPSS is 0.46%. Act only if a listed version of ISC BIND 9 is installed.

Which versions are affected?

Compare what you have installed with 0 → 9.20.30-r0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-476: NULL Pointer Dereference; CWE-617. EPSS 0.46%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 21, 2026 · CVE.org

    Updated

    A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

  2. Oct 21, 2026 · Canadian Centre for Cyber Security

    Detected

    CVE-2026-96888 is listed by ISC BIND security advisory (AV26-1072).

  3. Oct 23, 2026 · Trivy Vulnerability DB

    Fix available

    bind fixed in 9.20.30-r0; bind fixed in 9.20.30-r0; bind fixed in 9.20.30-r0

  4. Oct 23, 2026 · Trivy Vulnerability DB

    Fix available

    bind fixed in 9.20.30-r0

  5. Oct 23, 2026 · Trivy Vulnerability DB

    Updated

    A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.29-S1.

Sources

  • BSI CERT-BundGovernment advisoryCVE-2026-96888

    Internet Systems Consortium BIND: Mehrere Schwachstellen

    wid.cert-bund.de
  • Canadian Centre for Cyber SecurityGovernment advisoryCVE-2026-96888

    Serial number: AV26-1072 Date: October 21, 2026 As of October 21, 2026, ISC is affected by a vulnerability in the following products: BIND 9 Versions 9.11.0 to 9.18.50 Versions 9.11.0 to 9.18.50 ◦ Versions 9.21.0 to 9.21.26 BIND Supported Preview Edition Versions 9.11.3-S1 to 9.1

    cyber.gc.ca
  • CVE.orgVulnerability recordCVE-2026-96888

    A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 t

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-96888

    30-day exploitation probability 0.46%

    first.org
  • Openwall OSS SecurityThreat researchCVE-2026-96888

    Research mention from Openwall OSS Security. Not confirmation of exploitation.

    openwall.com
  • Trivy Vulnerability DBPackage advisoryALPINE-CVE-2026-96888

    A BIND resolver that is configured with both a "redirect" zone and "qname-minimization strict" may abort with an assertion failure while processing the redirect. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.29, 9.21.0 through 9.21.26, 9.16.8-S1 t

    osv.dev

References

Freshness

Last verified in this catalog Nov 1, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • BSI CERT-BundOct 31, 2026
  • Canadian Centre for Cyber SecurityOct 28, 2026
  • Trivy Vulnerability DBOct 23, 2026
  • CVE.orgOct 23, 2026
  • FIRST EPSSOct 23, 2026
  • Openwall OSS SecurityOct 23, 2026