CVE-2026-67553 json
Apache Qpid Proton Dotnet: Incoming session flow control window can be exceeded
published 2026-08-05 3 mo ago modified 2026-10-24 16 d ago also EUVD-2026-53088
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service.
This issue affects Apache Qpid Proton-Dotnet: through 1.0.0.
Users are recommended to upgrade to version 1.1.0, which fixes the issue.
Patch / fix
- apache qpid_proton-dotnet 1.1.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Apache Software Foundation Apache Qpid Proton Dotnet
Classification
- Weakness
-
- CWE-770 Allocation of Resources Without Limits or Throttling
References
-
lists.apache.org
/thread/hvsncmcbgjrn85crs909nf4y3dqqrywo
vendor-advisory, mailing-list
-
openwall.com
/lists/oss-security/2026/08/04/24
mailing-list, third-party-advisory
Sources
- CVE List CVE-2026-67553
- NVD CVE-2026-67553
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.