Security readout for executives and security teams
Plain-English summary
CVE-2026-22260 can cause Suricata 8.0.0 through 8.0.2 to crash while processing HTTP/1 decompression. This affects availability of network detection or prevention monitoring. The public record says Suricata 8.0.3 fixes it, with a configuration workaround if immediate upgrade is not possible.
Executive priority
Treat as a near-term availability fix for affected Suricata 8 deployments. A crash could reduce visibility or enforcement at network monitoring points. Upgrade to 8.0.3 should be prioritized, but evidence provided does not indicate known active exploitation.
Technical view
Suricata’s HTTP/1 handling can enter infinite recursion during decompression, leading to stack overflow and process crash. The CVSS 3.1 score is 7.5: network-reachable, low complexity, no privileges or user interaction, with high availability impact only. CWE-674 is assigned.
Likely exposure
Organizations running OISF Suricata versions 8.0.0, 8.0.1, or 8.0.2 are potentially exposed, especially where Suricata inspects HTTP traffic. Earlier major versions are not listed as affected in the provided sources.
Exploitation context
The sources do not state active exploitation, and this CVE is not marked KEV in the provided data. The vulnerability is remotely reachable in principle because the CVSS vector is AV:N, but public exploit details are not provided here.
Researcher notes
The advisory identifies infinite recursion in HTTP/1 decompression causing stack overflow. The fixing commit and OISF issue are available for code-level review. Avoid assuming impact beyond Suricata 8.0.0 to before 8.0.3 unless vendor sources expand the affected range.
Mitigation direction
- Upgrade affected Suricata deployments to version 8.0.3 or later.
- If not upgrading immediately, use default request-body-limit and response-body-limit values.
- Review the OISF GitHub advisory for vendor-specific operational guidance.
- Prioritize sensors in IPS mode or critical monitoring locations.
Validation and detection
- Inventory Suricata versions across sensors and appliances.
- Identify deployments running versions 8.0.0 through 8.0.2.
- Check request-body-limit and response-body-limit for non-default values.
- Confirm upgraded systems report Suricata 8.0.3 or later.
- Review logs for recent Suricata crashes or unexplained restarts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-674: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-22260 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/OISF/suricata/security/advisories/GHSA-3gm8-84cm-5x22CVE reference · x_refsource_CONFIRM
- https://github.com/OISF/suricata/commit/0dddac7278c8b9cf3c1e4c1c71e620a78ec1c185CVE reference · x_refsource_MISC
- https://redmine.openinfosecfoundation.org/issues/8185CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Recursion
Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.