01 Record
CVE-2026-44248
Netty: Resource exhaustion in MqttDecoder
MediumPUBLISHEDCNA: GitHub_M
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
02 Description
Netty: Resource exhaustion in MqttDecoder
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.56% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 46.5% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-26.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-05-13 18:23Z5 MO AGO
- Last updated
- 2026-09-11 12:09Z1 MO AGO
- Reserved
- 2026-05-05
- Assigning CNA
- GitHub_M
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Weaknesses
- Data version
- 5.2
- Document digest
- 1450d424d9dbc0fd5c2cc85be6d0dc54ea4e80b9ed791365433f132c05d5f4ca
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/netty/netty/security/advisories/GHSA-jfg9-48mv-9qgx
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-44248
- bugzilla.redhat.comRHBZ#2477231https://bugzilla.redhat.com/show_bug.cgi?id=2477231
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44248.json
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:66545
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:66488
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:41951
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:37390
07 Fixed in
Debian 12
- netty No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- netty No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- netty No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.