CVE catalog
CVE-2026-11610
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). After a successful SASL bind with integrity protection (SSF > 0), an authenticated attacker can send
- Severity
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.49% · Oct 25, 2026
A heap buffer overflow flaw was found in the SASL I/O layer of 389 Directory Server (389-ds-base). After a successful SASL bind with integrity protection (SSF > 0), an authenticated attacker can send a specially crafted oversized LDAP UNBIND packet that is copied into a 512-byte heap receive buffer without a bounds check in sasl_io_recv() in sasl_io.c. This allows up to approximately 2 megabytes of attacker-controlled data to overflow the buffer, causing a denial of service (server crash). In FreeIPA and Red Hat Identity Management deployments, any domain user with a valid Kerberos ticket, any enrolled host, or any service account can trigger this vulnerability over the network after authenticating via GSSAPI. The vulnerable code path has existed since approximately 2013 (389-ds-base 1.3.2) and was not addressed by the CVE-2025-14905 fix, which patched a separate heap overflow in schema.c only.
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 | 389-ds-base | sid | 3.3.1-3 | fixed |
| Debian | 389-ds-base | trixie | 3.1.2+dfsg1-1+deb13u1 | vulnerable |
| Debian | 389-ds-base | bookworm | 2.3.1+dfsg1-1+deb12u1 | vulnerable |
| Cpe | 389-ds-base | Not reported | Not reported | vulnerable |
| Suse | 389-ds | linux enterprise server 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | fixed |
| Suse | 389-ds | linux enterprise server for sap applications 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | fixed |
| Opensuse | 389-ds | leap 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | fixed |
| Opensuse | 389-ds | tumbleweed | 3.2.2+4b41542b2-1.1 | fixed |
| Suse | 389-ds | linux enterprise module for server applications 15 sp7 | 2.7.0~git212.9b0755edb-150700.3.19.1 | fixed |
| Suse | 389-ds | linux enterprise high performance computing 15 sp5-espos | 2.2.10~git255.752643c78-150500.3.48.1 | fixed |
| Suse | 389-ds | linux enterprise high performance computing 15 sp5-ltss | 2.2.10~git255.752643c78-150500.3.48.1 | fixed |
| Suse | 389-ds | linux enterprise server 15 sp5-ltss | 2.2.10~git255.752643c78-150500.3.48.1 | fixed |
| Suse | 389-ds | linux enterprise server for sap applications 15 sp5 | 2.2.10~git255.752643c78-150500.3.48.1 | fixed |
| Suse | 389-ds | linux enterprise server 15 sp6-ltss | 2.2.10~git255.752643c78-150600.8.32.1 | fixed |
| Suse | 389-ds | linux enterprise server for sap applications 15 sp6 | 2.2.10~git255.752643c78-150600.8.32.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | 389-ds-base | source | sid | 3.3.1-1 | not yet assigned | Not reported | [1142285] |
| Debian | 389-ds-base | source | trixie | (unfixed) | not yet assigned | Not reported | [1142285] |
| Debian | 389-ds-base | source | bookworm | (unfixed) | not yet assigned | Not reported | [1142285] |
| Suse | 389-ds | rpm | linux enterprise server 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | Not reported | SUSE-SU-2026:23574-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise server for sap applications 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | Not reported | SUSE-SU-2026:23574-1 | Not reported |
| Opensuse | 389-ds | rpm | leap 16.0 | 3.0.6~git382.7a51ea5f5-160000.1.1 | Not reported | OPENSUSE-SU-2026:21691-1 | Not reported |
| Opensuse | 389-ds | rpm | tumbleweed | 3.2.2+4b41542b2-1.1 | Not reported | OPENSUSE-SU-2026:11600-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise module for server applications 15 sp7 | 2.7.0~git212.9b0755edb-150700.3.19.1 | Not reported | SUSE-SU-2026:3138-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise high performance computing 15 sp5-espos | 2.2.10~git255.752643c78-150500.3.48.1 | Not reported | SUSE-SU-2026:3137-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise high performance computing 15 sp5-ltss | 2.2.10~git255.752643c78-150500.3.48.1 | Not reported | SUSE-SU-2026:3137-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise server 15 sp5-ltss | 2.2.10~git255.752643c78-150500.3.48.1 | Not reported | SUSE-SU-2026:3137-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise server for sap applications 15 sp5 | 2.2.10~git255.752643c78-150500.3.48.1 | Not reported | SUSE-SU-2026:3137-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise server 15 sp6-ltss | 2.2.10~git255.752643c78-150600.8.32.1 | Not reported | SUSE-SU-2026:3136-1 | Not reported |
| Suse | 389-ds | rpm | linux enterprise server for sap applications 15 sp6 | 2.2.10~git255.752643c78-150600.8.32.1 | Not reported | SUSE-SU-2026:3136-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [389-ds]Affected
Source package: [389-ds-base]
Details (2)
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
- [389-ds-base]Affected
Details (2)
2.3.1+dfsg1-1+deb12u1· amd64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· arm64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
- [389-ds-base-dev]Affected
Source package: [389-ds-base]
Details (2)
2.3.1+dfsg1-1+deb12u1· amd64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· arm64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
- [389-ds-base-libs]Affected
Source package: [389-ds-base]
Details (2)
2.3.1+dfsg1-1+deb12u1· amd64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· arm64 · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
- [cockpit-389-ds]Affected
Source package: [389-ds-base]
Details (2)
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
- [python3-lib389]Affected
Source package: [389-ds-base]
Details (2)
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
2.3.1+dfsg1-1+deb12u1· all · bookwormAffected
nvd · 389-ds-base · debian · bookworm; nvd · 389-ds-base · debian · 12
[Debian 13 (Trixie)]
- [389-ds]Affected
Source package: [389-ds-base]
Details (2)
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
- [389-ds-base]Affected
Details (2)
3.1.2+dfsg1-1+deb13u1· amd64 · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· arm64 · trixieAffected
nvd · 389-ds-base · debian · 13
- [389-ds-base-dev]Affected
Source package: [389-ds-base]
Details (2)
3.1.2+dfsg1-1+deb13u1· amd64 · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· arm64 · trixieAffected
nvd · 389-ds-base · debian · 13
- [389-ds-base-libs]Affected
Source package: [389-ds-base]
Details (2)
3.1.2+dfsg1-1+deb13u1· amd64 · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· arm64 · trixieAffected
nvd · 389-ds-base · debian · 13
- [cockpit-389-ds]Affected
Source package: [389-ds-base]
Details (2)
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
- [python3-lib389]Affected
Source package: [389-ds-base]
Details (2)
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
3.1.2+dfsg1-1+deb13u1· all · trixieAffected
nvd · 389-ds-base · debian · 13
[openSUSE Tumbleweed]
- [389-ds-devel]Unknown
Source package: [389-ds]
Details (1)
3.2.2+4b41542b2-1.1· x86_64 · tumbleweedUnknown · Fixed:
3.2.2+4b41542b2-1.1Version impact unknown
nvd · 389-ds · opensuse · tumbleweed
- [389-ds-snmp]Unknown
Source package: [389-ds]
Details (1)
3.2.2+4b41542b2-1.1· x86_64 · tumbleweedUnknown · Fixed:
3.2.2+4b41542b2-1.1Version impact unknown
nvd · 389-ds · opensuse · tumbleweed
- [lib389]Unknown
Source package: [389-ds]
Details (1)
3.2.2+4b41542b2-1.1· x86_64 · tumbleweedUnknown · Fixed:
3.2.2+4b41542b2-1.1Version impact unknown
nvd · 389-ds · opensuse · tumbleweed
- [libsvrcore0]Unknown
Source package: [389-ds]
Details (1)
3.2.2+4b41542b2-1.1· x86_64 · tumbleweedUnknown · Fixed:
3.2.2+4b41542b2-1.1Version impact unknown
nvd · 389-ds · opensuse · tumbleweed
- [389-ds]Fixed
Source package: [389-ds]
Details (1)
3.2.2+4b41542b2-1.1· x86_64 · tumbleweedFixed · Fixed:
3.2.2+4b41542b2-1.1nvd · 389-ds · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2026_36195.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-11610]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-11610]
- [https://osv.dev/vulnerability/SUSE-SU-2026:23574-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3136-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3137-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:3138-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:11600-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21691-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-11610]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-11610.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2225.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]