CVE catalog
CVE-2026-101341
Tokens of text in RDATA (of for example TXT records) under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an
- Severity
- High · CVSS 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.35% · Oct 25, 2026
Tokens of text in RDATA (of for example TXT records) under 32 bytes are not checked to stay within the space reserved for the RDATA allowing for arbitrary sized out of bound stack writes, including an overwrite of a callback function pointer which is called directly after parse. Zone files which are written out by NSD itself, such for zones for which the NSD instance is secondary, will not be formatted like this. The zone file must be fed to NSD directly, (but it could come, for example, from an operator controlled provisioning system).
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nsd | sid | 4.15.4-1 | fixed |
| Debian | nsd | forky | 4.15.4-1 | fixed |
| Debian | nsd | trixie | 4.12.0-1 | vulnerable |
| Debian | nsd | bookworm | 4.6.1-1 | vulnerable |
| Alpine | nsd | 3.24 | 4.14.3-r1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nsd | source | sid | 4.15.3-1 | not yet assigned | Not reported | [1150930] |
| Debian | nsd | source | forky | 4.15.3-1 | not yet assigned | Not reported | [1150930] |
| Debian | nsd | source | trixie | (unfixed) | not yet assigned | Not reported | [1150930] |
| Debian | nsd | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150930] |
| Alpine | nsd | apk | 3.24 | 4.14.3-r1 | Not reported | ALPINE-CVE-2026-101341 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [nsd]Affected
Details (2)
4.6.1-1· amd64 · bookwormAffected
nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
4.6.1-1· arm64 · bookwormAffected
nvd · nsd · debian · bookworm; nvd · nsd · debian · 12
[Debian 13 (Trixie)]
- [nsd]Affected
Details (2)
4.12.0-1· amd64 · trixieAffected
nvd · nsd · debian · 13
4.12.0-1· arm64 · trixieAffected
nvd · nsd · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-101341]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-101341]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-101341]
- [https://security-tracker.debian.org/tracker/CVE-2026-101341]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-101341.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]