CVE catalog
CVE-2026-67588
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users a
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.77% · Oct 25, 2026
A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.
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 | qpid-proton | bookworm | Not reported | vulnerable |
| Cpe | qpid_protonj2 | Not reported | 1.2.0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | qpid_protonj2 | cpe | Not reported | 1.2.0 | Not reported | NVD-CVE-2026-67588 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libqpid-proton11]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2+b1· amd64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2+b1· arm64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton11-dev]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2+b1· amd64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2+b1· arm64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton11-dev-doc]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton11-dev-examples]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton-cpp12]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2+b1· amd64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2+b1· arm64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton-cpp12-dev]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2+b1· amd64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2+b1· arm64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [libqpid-proton-cpp12-dev-doc]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [python3-qpid-proton]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2+b1· amd64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2+b1· arm64 · bookwormAffected
nvd · qpid-proton · debian · bookworm
- [python-qpid-proton-doc]Affected
Source package: [qpid-proton]
Details (2)
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
0.37.0-2· all · bookwormAffected
nvd · qpid-proton · debian · bookworm
Observed:
References
- [http://www.openwall.com/lists/oss-security/2026/08/04/27]
- [https://lists.apache.org/thread/vk4j02dzggfdrdkwvzmqo4jro2tgj0jt]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-67588]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-67588]
- [https://security-tracker.debian.org/tracker/CVE-2026-67588]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-67588.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]