CVE catalog
CVE-2026-28387
Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-f
- Severity
- High · CVSS 8.1
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.67% · Oct 25, 2026
Issue summary: An uncommon configuration of clients performing DANE TLSA-based server authentication, when paired with uncommon server DANE TLSA records, may result in a use-after-free and/or double-free on the client side. Impact summary: A use after free can have a range of potential consequences such as the corruption of valid data, crashes or execution of arbitrary code. However, the issue only affects clients that make use of TLSA records with both the PKIX-TA(0/PKIX-EE(1) certificate usages and the DANE-TA(2) certificate usage. By far the most common deployment of DANE is in SMTP MTAs for which RFC7672 recommends that clients treat as 'unusable' any TLSA records that have the PKIX certificate usages. These SMTP (or other similar) clients are not vulnerable to this issue. Conversely, any clients that support only the PKIX usages, and ignore the DANE-TA(2) usage are also not vulnerable. The client would also need to be communicating with a server that publishes a TLSA RRset with both types of TLSA records. No FIPS modules are affected by this issue, the problem code is outside the FIPS module boundary.
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 | openssl | sid | 3.6.5-1 | fixed |
| Debian | openssl | forky | 3.6.5-1 | fixed |
| Debian | openssl | trixie | 3.5.7-1~deb13u2 | fixed |
| Debian | openssl | trixie-security | 3.5.7-1~deb13u3 | fixed |
| Debian | openssl | bookworm | 3.0.20-1~deb12u2 | fixed |
| Debian | openssl | bookworm-security | 3.0.22-1~deb12u2 | fixed |
| Cpe | openssl | Not reported | 3.0.13-0ubuntu3.9 | fixed |
| Cpe | libssl-dev | Not reported | 3.0.13-0ubuntu3.9 | fixed |
| Cpe | libssl-doc | Not reported | 3.0.13-0ubuntu3.9 | fixed |
| Cpe | libssl3t64 | Not reported | 3.0.13-0ubuntu3.9 | fixed |
| Cpe | openssl | Not reported | 1.1.1zg | fixed |
| Cpe | openssl | Not reported | 3.0.20 | fixed |
| Cpe | openssl | Not reported | 3.3.7 | fixed |
| Cpe | openssl | Not reported | 3.4.5 | fixed |
| Cpe | openssl | Not reported | 3.5.6 | fixed |
| Cpe | openssl | Not reported | 3.6.2 | fixed |
| Cpe | openssl | Not reported | 3.0.19-1~deb12u2 | fixed |
| Alpine | openssl | 3.20 | 3.3.7-r0 | fixed |
| Alpine | openssl | 3.21 | 3.3.7-r0 | fixed |
| Alpine | openssl | 3.22 | 3.5.6-r0 | fixed |
| Alpine | openssl | 3.23 | 3.5.6-r0 | fixed |
| Alpine | openssl | 3.24 | 3.5.6-r0 | fixed |
| Suse | openssl-1_1 | linux enterprise server 15 sp6-ltss | 1.1.1w-150600.5.26.2 | fixed |
| Suse | openssl-1_1 | linux enterprise server for sap applications 15 sp6 | 1.1.1w-150600.5.26.2 | fixed |
| Suse | openssl-1_1 | linux enterprise module for basesystem 15 sp7 | 1.1.1w-150700.11.16.1 | fixed |
| Suse | openssl-1_1 | linux enterprise module for development tools 15 sp7 | 1.1.1w-150700.11.16.1 | fixed |
| Suse | openssl-1_1 | linux enterprise module for legacy 15 sp7 | 1.1.1w-150700.11.16.1 | fixed |
| Suse | openssl-3 | linux enterprise module for basesystem 15 sp7 | 3.2.3-150700.5.31.1 | fixed |
| Suse | openssl-3 | linux micro 6.1 | 3.1.4-slfo.1.1_9.1 | fixed |
| Suse | openssl-3 | linux micro 6.0 | 3.1.4-12.1 | fixed |
| Suse | openssl-1_1 | linux enterprise micro 5.5 | 1.1.1l-150500.17.51.1 | fixed |
| Suse | openssl-1_1 | linux enterprise high performance computing 15 sp5-espos | 1.1.1l-150500.17.51.1 | fixed |
| Suse | openssl-1_1 | linux enterprise high performance computing 15 sp5-ltss | 1.1.1l-150500.17.51.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server 15 sp5-ltss | 1.1.1l-150500.17.51.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server for sap applications 15 sp5 | 1.1.1l-150500.17.51.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise module for legacy 15 sp7 | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise high performance computing 15 sp4-espos | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise high performance computing 15 sp4-ltss | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server 15 sp4-ltss | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server 15 sp5-ltss | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server 15 sp6-ltss | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server for sap applications 15 sp4 | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server for sap applications 15 sp5 | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server for sap applications 15 sp6 | 1.0.2p-150000.3.105.1 | fixed |
| Opensuse | openssl-1_0_0 | leap 15.6 | 1.0.2p-150000.3.105.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server 12 sp5-ltss | 1.0.2p-3.106.1 | fixed |
| Suse | openssl-1_0_0 | linux enterprise server ltss extended security 12 sp5 | 1.0.2p-3.106.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server 12 sp5-ltss | 1.1.1d-2.125.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server ltss extended security 12 sp5 | 1.1.1d-2.125.1 | fixed |
| Suse | openssl-1_1 | linux enterprise micro 5.3 | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-1_1 | linux enterprise micro 5.4 | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-1_1 | linux enterprise high performance computing 15 sp4-espos | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-1_1 | linux enterprise high performance computing 15 sp4-ltss | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server 15 sp4-ltss | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-1_1 | linux enterprise server for sap applications 15 sp4 | 1.1.1l-150400.7.90.1 | fixed |
| Suse | openssl-3 | linux enterprise micro 5.3 | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise micro 5.4 | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise high performance computing 15 sp4-espos | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise high performance computing 15 sp4-ltss | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise server 15 sp4-ltss | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise server for sap applications 15 sp4 | 3.0.8-150400.4.81.1 | fixed |
| Suse | openssl-3 | linux enterprise high performance computing 15 sp5-espos | 3.0.8-150500.5.60.1 | fixed |
| Suse | openssl-3 | linux enterprise high performance computing 15 sp5-ltss | 3.0.8-150500.5.60.1 | fixed |
| Suse | openssl-3 | linux enterprise server 15 sp5-ltss | 3.0.8-150500.5.60.1 | fixed |
| Suse | openssl-3 | linux enterprise server for sap applications 15 sp5 | 3.0.8-150500.5.60.1 | fixed |
| Suse | openssl-3 | linux enterprise server 15 sp6-ltss | 3.1.4-150600.5.45.1 | fixed |
| Suse | openssl-3 | linux enterprise server for sap applications 15 sp6 | 3.1.4-150600.5.45.1 | fixed |
| Opensuse | openssl-3 | leap 15.6 | 3.1.4-150600.5.45.1 | fixed |
| Suse | openssl-1_1 | linux enterprise micro 5.2 | 1.1.1d-150200.11.109.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openssl | source | sid | 3.6.2-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | forky | 3.6.2-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | trixie | 3.5.5-1~deb13u2 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | bookworm | 3.0.19-1~deb12u2 | not yet assigned | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.0.13-0ubuntu3.9 | Not reported | Not reported | Not reported |
| Cpe | libssl-dev | cpe | Not reported | 3.0.13-0ubuntu3.9 | Not reported | Not reported | Not reported |
| Cpe | libssl-doc | cpe | Not reported | 3.0.13-0ubuntu3.9 | Not reported | Not reported | Not reported |
| Cpe | libssl3t64 | cpe | Not reported | 3.0.13-0ubuntu3.9 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 1.1.1zg | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.0.20 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.3.7 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.4.5 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.5.6 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.6.2 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 3.0.19-1~deb12u2 | Not reported | Not reported | Not reported |
| Alpine | openssl | apk | 3.20 | 3.3.7-r0 | Not reported | ALPINE-CVE-2026-28387 | Not reported |
| Alpine | openssl | apk | 3.21 | 3.3.7-r0 | Not reported | ALPINE-CVE-2026-28387 | Not reported |
| Alpine | openssl | apk | 3.22 | 3.5.6-r0 | Not reported | ALPINE-CVE-2026-28387 | Not reported |
| Alpine | openssl | apk | 3.23 | 3.5.6-r0 | Not reported | ALPINE-CVE-2026-28387 | Not reported |
| Alpine | openssl | apk | 3.24 | 3.5.6-r0 | Not reported | ALPINE-CVE-2026-28387 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server 15 sp6-ltss | 1.1.1w-150600.5.26.2 | Not reported | SUSE-SU-2026:1577-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server for sap applications 15 sp6 | 1.1.1w-150600.5.26.2 | Not reported | SUSE-SU-2026:1577-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise module for basesystem 15 sp7 | 1.1.1w-150700.11.16.1 | Not reported | SUSE-SU-2026:1386-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise module for development tools 15 sp7 | 1.1.1w-150700.11.16.1 | Not reported | SUSE-SU-2026:1386-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise module for legacy 15 sp7 | 1.1.1w-150700.11.16.1 | Not reported | SUSE-SU-2026:1386-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise module for basesystem 15 sp7 | 3.2.3-150700.5.31.1 | Not reported | SUSE-SU-2026:1375-1 | Not reported |
| Suse | openssl-3 | rpm | linux micro 6.1 | 3.1.4-slfo.1.1_9.1 | Not reported | SUSE-SU-2026:21037-1 | Not reported |
| Suse | openssl-3 | rpm | linux micro 6.0 | 3.1.4-12.1 | Not reported | SUSE-SU-2026:21065-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise micro 5.5 | 1.1.1l-150500.17.51.1 | Not reported | SUSE-SU-2026:1290-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise high performance computing 15 sp5-espos | 1.1.1l-150500.17.51.1 | Not reported | SUSE-SU-2026:1290-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise high performance computing 15 sp5-ltss | 1.1.1l-150500.17.51.1 | Not reported | SUSE-SU-2026:1290-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server 15 sp5-ltss | 1.1.1l-150500.17.51.1 | Not reported | SUSE-SU-2026:1290-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server for sap applications 15 sp5 | 1.1.1l-150500.17.51.1 | Not reported | SUSE-SU-2026:1290-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise module for legacy 15 sp7 | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise high performance computing 15 sp4-espos | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise high performance computing 15 sp4-ltss | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server 15 sp4-ltss | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server 15 sp5-ltss | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server 15 sp6-ltss | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server for sap applications 15 sp4 | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server for sap applications 15 sp5 | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server for sap applications 15 sp6 | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Opensuse | openssl-1_0_0 | rpm | leap 15.6 | 1.0.2p-150000.3.105.1 | Not reported | SUSE-SU-2026:1291-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server 12 sp5-ltss | 1.0.2p-3.106.1 | Not reported | SUSE-SU-2026:1256-1 | Not reported |
| Suse | openssl-1_0_0 | rpm | linux enterprise server ltss extended security 12 sp5 | 1.0.2p-3.106.1 | Not reported | SUSE-SU-2026:1256-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server 12 sp5-ltss | 1.1.1d-2.125.1 | Not reported | SUSE-SU-2026:1255-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server ltss extended security 12 sp5 | 1.1.1d-2.125.1 | Not reported | SUSE-SU-2026:1255-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise micro 5.3 | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise micro 5.4 | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise high performance computing 15 sp4-espos | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise high performance computing 15 sp4-ltss | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server 15 sp4-ltss | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise server for sap applications 15 sp4 | 1.1.1l-150400.7.90.1 | Not reported | SUSE-SU-2026:1257-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise micro 5.3 | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise micro 5.4 | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise high performance computing 15 sp4-espos | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise high performance computing 15 sp4-ltss | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server 15 sp4-ltss | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server for sap applications 15 sp4 | 3.0.8-150400.4.81.1 | Not reported | SUSE-SU-2026:1214-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise high performance computing 15 sp5-espos | 3.0.8-150500.5.60.1 | Not reported | SUSE-SU-2026:1213-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise high performance computing 15 sp5-ltss | 3.0.8-150500.5.60.1 | Not reported | SUSE-SU-2026:1213-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server 15 sp5-ltss | 3.0.8-150500.5.60.1 | Not reported | SUSE-SU-2026:1213-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server for sap applications 15 sp5 | 3.0.8-150500.5.60.1 | Not reported | SUSE-SU-2026:1213-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server 15 sp6-ltss | 3.1.4-150600.5.45.1 | Not reported | SUSE-SU-2026:1215-1 | Not reported |
| Suse | openssl-3 | rpm | linux enterprise server for sap applications 15 sp6 | 3.1.4-150600.5.45.1 | Not reported | SUSE-SU-2026:1215-1 | Not reported |
| Opensuse | openssl-3 | rpm | leap 15.6 | 3.1.4-150600.5.45.1 | Not reported | SUSE-SU-2026:1215-1 | Not reported |
| Suse | openssl-1_1 | rpm | linux enterprise micro 5.2 | 1.1.1d-150200.11.109.1 | Not reported | SUSE-SU-2026:1216-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-265688.json]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-28387]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-28387]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-28387]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1213-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1214-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1215-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1216-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1255-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1256-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1257-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1290-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1291-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1375-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1386-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:1577-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:21037-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:21065-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-28387]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28387.json]
- [https://ubuntu.com/security/notices/USN-8155-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0995.json]
[CERT-Bund public advisories] · [CISA cybersecurity 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] · [Ubuntu Security Notices (USN)]