CVE-2026-10822 (GCVE-0-2026-10822)

Vulnerability from cvelistv5 – Published: 2026-07-22 14:09 – Updated: 2026-07-22 18:53
VLAI
Title
Key Record using PRIVATEDNS algorithm may lead to unexpected exit
Summary
If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit. BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must specify a PRIVATEDNS algorithm (253), and in the algorithm identifier, improperly give a length longer than the actual identifier data. The invalid identifier will be stored. If BIND later needs to render that record to text, it will use the invalid length during processing, leading to a consistency check failing. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-617 - Reachable Assertion
  • CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
isc
References
Impacted products
Vendor Product Version
ISC BIND 9 Affected: 9.18.0 , ≤ 9.18.50 (custom)
Affected: 9.20.0 , ≤ 9.20.24 (custom)
Affected: 9.21.0 , ≤ 9.21.23 (custom)
Affected: 9.18.11-S1 , ≤ 9.18.50-S1 (custom)
Affected: 9.20.9-S1 , ≤ 9.20.24-S1 (custom)
Create a notification for this product.
Date Public
2026-07-22 00:00
Show details on NVD website
To clipboard 

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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