Security readout for executives and security teams
Plain-English summary
This is a service-availability risk in Traefik. A remote attacker can abuse HTTP/2 request handling by rapidly opening and canceling streams, consuming resources and making services behind Traefik unavailable. The source bundle identifies fixed Traefik versions as 2.10.5 and 3.0.0-beta4.
Executive priority
Prioritize remediation for public-facing Traefik because the impact is service outage, not data theft. The attack is remote and unauthenticated, so business risk depends mainly on where vulnerable Traefik instances sit in the traffic path and whether HTTP/2 is exposed.
Technical view
Traefik versions before 2.10.5 and 3.0.0-beta4 inherit HTTP/2 denial-of-service behavior from Go's HTTP/2 implementation, associated with CVE-2023-44487 and CVE-2023-39325. The issue maps to uncontrolled resource consumption and allocation limits, with high availability impact and network, unauthenticated attack conditions.
Likely exposure
Most relevant exposure is internet-facing Traefik deployments that accept HTTP/2 traffic and run versions older than 2.10.5, or 3.0.0 beta builds older than beta4. Internal Traefik deployments may still matter if reachable by untrusted tenants or compromised hosts.
Exploitation context
The bundle does not show CISA KEV listing or confirmed active exploitation for this Traefik-specific CVE. It describes the Rapid Reset technique and remote unauthenticated denial-of-service conditions. Treat exploitability as credible, but do not claim observed exploitation from these sources alone.
Researcher notes
Evidence is strongest for version exposure, attack class, and availability impact. The source bundle links the issue to Go HTTP/2 Rapid Reset behavior and CWE-400/CWE-770. It does not provide Traefik-specific proof of active exploitation, detailed package status, or alternative mitigations beyond fixed versions and vendor guidance.
Mitigation direction
- Upgrade Traefik 2.x deployments to 2.10.5 or later.
- Upgrade Traefik 3.0.0 beta deployments to beta4 or later.
- Review the Traefik advisory for deployment-specific guidance.
- Prioritize public HTTP/2 entry points before internal-only instances.
- If upgrade is delayed, check vendor guidance for temporary exposure reduction.
Validation and detection
- Inventory Traefik versions across ingress, proxy, and edge deployments.
- Identify which Traefik entry points accept HTTP/2 traffic.
- Confirm patched versions are deployed in production and staging.
- Review monitoring for resource exhaustion and unexplained availability drops.
- Track vendor and distribution advisories for packaging status.
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-400: 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 lookupCWE-770: 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-2023-54365 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
- 8.7 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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.
SSVC decision data
CVSS vector scores
3 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N——VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6redhat-SADPVulnerability scoring details
Base CVSS 4.0 score
8.7HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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
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
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- ADP timelineredhat-SADP
Made public.
- CVE publishedCVE Program
The CVE record was published.
- ADP timelineredhat-SADP
Reported to Red Hat.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
- 2026-06-23T13:01:50.400Z: Reported to Red Hat.
- 2026-06-23T12:12:51.853Z: Made public.
Source materials
- CVE List V5 sourceCVE List V5
- GitHub Security Advisory (GHSA-7v4p-328v-8v5g)CVE reference, VulnCheck · vendor-advisory
- VulnCheck Advisory: Traefik - Denial of Service via HTTP/2 Request HandlingCVE reference, VulnCheck · third-party-advisory
- https://access.redhat.com/security/cve/CVE-2023-54365CVE reference, redhat-SADP · vdb-entry, x_refsource_REDHAT
- RHBZ#2491710CVE reference, redhat-SADP · issue-tracking, x_refsource_REDHAT
- https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54365.jsonCVE reference, redhat-SADP · x_sadp-csaf-vex
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 Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Allocation of Resources Without Limits or Throttling
Allocation of Resources Without Limits or Throttling represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.