Catalogo CVE
CVE-2026-63074
Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a se
- Gravità
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.59% · Oct 22, 2026
Issue summary: The OpenSSL Certificate Management Protocol (CMP) caches additional certificates (extraCerts) sent in a CMP message, but never expunges them (for instance if they are invalid). If a server reuses an OSSL_CMP_CTX frequently, this cache of extraCerts may grow unboundedly, and a malicious client may flood a CMP server with requests driving this growth. Impact summary: Users utilizing a CMP server that reuses a single OSSL_CMP_CTX for the lifetime of a server process may observe unbounded memory growth in the event a malicious client repeatedly sends requests containing unique extra certificates, which may lead to OOM conditions. CWE: CWE-770: Allocation of Resources Without Limits or Throttling Description: If a remote user sends CMP messages to a server with a list of extraCerts and the message is rejected, the extraCerts from the message remains in the server contexts untrusted certificate stack. This exposes servers with long lived ctx objects to Denial of Service attacks in which an attacker sends messages intending to be rejected with a large list of additional certificates repeatedly, forcing the server to store them indefinitely. The issue was fixed by removing the added extra certs if the message is rejected, using the same method as when the context is configured to not do caching at all. FIPS impact: no As the CMP code lives outside the FIPS module boundary, no FIPS modules are affected by this CVE.
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 | vulnerable |
| Debian | openssl | bookworm-security | 3.0.22-1~deb12u1 | fixed |
| Ubuntu | openssl | noble | 3.0.13-0ubuntu3.15 | fixed |
| Ubuntu | libssl-dev | noble | 3.0.13-0ubuntu3.15 | fixed |
| Ubuntu | libssl-doc | noble | 3.0.13-0ubuntu3.15 | fixed |
| Ubuntu | libssl3t64 | noble | 3.0.13-0ubuntu3.15 | fixed |
| Cpe | openssl | Not reported | 4.0.2 | fixed |
| Alpine | openssl | 3.22 | 3.5.8-r0 | fixed |
| Alpine | openssl | 3.23 | 3.5.8-r0 | fixed |
| Alpine | openssl | 3.24 | 3.5.8-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openssl | source | sid | 3.6.4-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | forky | 3.6.4-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | trixie | 3.5.7-1~deb13u2 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | bookworm | 3.0.22-1~deb12u1 | not yet assigned | Not reported | Not reported |
| Ubuntu | openssl | deb | noble | 3.0.13-0ubuntu3.15 | Not reported | Not reported | Not reported |
| Ubuntu | libssl-dev | deb | noble | 3.0.13-0ubuntu3.15 | Not reported | Not reported | Not reported |
| Ubuntu | libssl-doc | deb | noble | 3.0.13-0ubuntu3.15 | Not reported | Not reported | Not reported |
| Ubuntu | libssl3t64 | deb | noble | 3.0.13-0ubuntu3.15 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 4.0.2 | Not reported | NVD-CVE-2026-63074 | Not reported |
| Alpine | openssl | apk | 3.22 | 3.5.8-r0 | Not reported | ALPINE-CVE-2026-63074 | Not reported |
| Alpine | openssl | apk | 3.23 | 3.5.8-r0 | Not reported | ALPINE-CVE-2026-63074 | Not reported |
| Alpine | openssl | apk | 3.24 | 3.5.8-r0 | Not reported | ALPINE-CVE-2026-63074 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libssl3]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.0.20-1~deb12u2· amd64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
- [libssl-dev]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.0.20-1~deb12u2· amd64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
- [libssl-doc]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.0.20-1~deb12u2· all · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· all · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· all · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· all · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· all · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· all · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
- [openssl]Interessata
Dettagli (6)
3.0.20-1~deb12u2· amd64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookwormInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· amd64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.20-1~deb12u2· arm64 · bookworm-securityInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· amd64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
3.0.17-1~deb12u2· arm64 · bookworm-updatesInteressata · Corretta:
3.0.22-1~deb12u1nvd · openssl · debian · bookworm; nvd · openssl · debian · 12
[Debian 13 (Trixie)]
- [libssl3t64]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.5.6-1~deb13u2· amd64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
- [libssl-dev]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.5.6-1~deb13u2· amd64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
- [libssl-doc]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.5.6-1~deb13u2· all · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· all · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· all · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· all · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
- [openssl]Interessata
Dettagli (6)
3.5.6-1~deb13u2· amd64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
- [openssl-provider-fips]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.5.6-1~deb13u2· amd64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
- [openssl-provider-legacy]Interessata
Pacchetto sorgente: [openssl]
Dettagli (6)
3.5.6-1~deb13u2· amd64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionInteressata · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityCorretta · Corretta:
3.5.7-1~deb13u2nvd · openssl · debian · 13
Osservato:
Riferimenti
- [https://access.redhat.com/errata/RHSA-2026:67154]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-63074]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-63074]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-63074]
- [https://security-tracker.debian.org/tracker/CVE-2026-63074]
- [https://ubuntu.com/security/notices/USN-8678-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3034.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] · [Ubuntu Security Notices (USN)]