CVE-2026-12382: Aap-gateway: missing requestheaderstoremove allows mtls bypass via subject header spoofing
Noroxi assessment
Priority: Monitor (action score 32/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.46% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: ansible-core (Red Hat:ansible_automation_platform_developer:2.5::el8) 1:2.16.19-1.el8ap; automation-controller (Red Hat:ansible_automation_platform_developer:2.5::el8) 0:4.6.30-2.el8ap; automation-controller-cli (Red Hat:ansible_automation_platform_developer:2.5::el8) 0:4.6.30-2.el8ap.
Low priority for now. Upgrade to ansible-core (Red Hat:ansible_automation_platform_developer:2.5::el8) 1:2.16.19-1.el8ap; automation-controller (Red Hat:ansible_automation_platform_developer:2.5::el8) 0:4.6.30-2.el8ap; automation-controller-cli (Red Hat:ansible_automation_platform_developer:2.5::el8) 0:4.6.30-2.el8ap or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
A flaw was found in the AAP Gateway Envoy proxy configuration. The non-mTLS route to EDA event streams does not remove the Subject HTTP header from client requests, despite the source code defining requestHeadersToRemove for this header. An unauthenticated remote attacker can inject a spoofed Subject header matching a legitimate client certificate DN to bypass mTLS authentication and inject arbitrary events into protected EDA event streams.
- Published
- Jul 15, 2026
- Updated
- Aug 12, 2026
- EPSS
- 0.4% · 40th percentile
- CWE
- CWE-290
Report tools
Action score
32
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · redhat
- 8.2
- NVD has not scored this yet; the score shown is the CNA’s.
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8
- 0:2.5.20260715-1.el8ap and laternot affected · rpm
Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9
- 0:2.5.20260715-1.el9ap and laternot affected · rpm
Red Hat Red Hat Ansible Automation Platform 2.6
- 1777311120 and laternot affected · rpm
Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9
- 0:2.6.20260422-1.el9ap and laternot affected · rpm
Red Hat Red Hat Ansible Automation Platform 2.7
- 1783919486 and laternot affected · rpm
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:ansible_automation_platform_developer:2.5::el8 | ansible-core | before 1:2.16.19-1.el8ap | 1:2.16.19-1.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el8 | automation-controller | before 0:4.6.30-2.el8ap | 0:4.6.30-2.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el8 | automation-controller-cli | before 0:4.6.30-2.el8ap | 0:4.6.30-2.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el8 | python3.12-urllib3 | before 0:2.7.0-1.el8ap | 0:2.7.0-1.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el8 | receptor | before 0:1.6.6-1.el8ap | 0:1.6.6-1.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el8 | receptorctl | before 0:1.6.6-1.el8ap | 0:1.6.6-1.el8ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | ansible-core | before 1:2.16.19-1.el9ap | 1:2.16.19-1.el9ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | automation-controller | before 0:4.6.30-2.el9ap | 0:4.6.30-2.el9ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | automation-controller-cli | before 0:4.6.30-2.el9ap | 0:4.6.30-2.el9ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | python3.12-urllib3 | before 0:2.7.0-1.el9ap | 0:2.7.0-1.el9ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | receptor | before 0:1.6.6-1.el9ap | 0:1.6.6-1.el9ap |
| Red Hat:ansible_automation_platform_developer:2.5::el9 | receptorctl | before 0:1.6.6-1.el9ap | 0:1.6.6-1.el9ap |
| Red Hat:ansible_automation_platform_developer:2.6::el9 | automation-controller | before 0:4.7.11-2.el9ap | 0:4.7.11-2.el9ap |
| Red Hat:ansible_automation_platform_developer:2.6::el9 | automation-controller-cli | before 0:4.7.11-2.el9ap | 0:4.7.11-2.el9ap |
| Red Hat:ansible_automation_platform_developer:2.6::el9 | receptor | before 0:1.6.4-2.el9ap | 0:1.6.4-2.el9ap |
| Red Hat:ansible_automation_platform_developer:2.6::el9 | receptorctl | before 0:1.6.4-2.el9ap | 0:1.6.4-2.el9ap |
| Red Hat:ansible_automation_platform:2.5::el8 | ansible-test | before 1:2.16.19-1.el8ap | 1:2.16.19-1.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-controller-server | before 0:4.6.30-2.el8ap | 0:4.6.30-2.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-controller-ui | before 0:4.6.30-2.el8ap | 0:4.6.30-2.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-controller-venv-tower | before 0:4.6.30-2.el8ap | 0:4.6.30-2.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-eda-controller | before 0:1.1.20-1.el8ap | 0:1.1.20-1.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-eda-controller-base | before 0:1.1.20-1.el8ap | 0:1.1.20-1.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-eda-controller-base-services | before 0:1.1.20-1.el8ap | 0:1.1.20-1.el8ap |
| Red Hat:ansible_automation_platform:2.5::el8 | automation-eda-controller-event-stream-services | before 0:1.1.20-1.el8ap | 0:1.1.20-1.el8ap |
+74
Same product
red hat: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-11807Eda-server: websocket missing authorization allows credential theft via activation_id spoofing38Monitor
- CVE-2026-12701Pulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemexport36Monitor
- CVE-2025-49521Event-driven-ansible: template injection via git branch and refspec in eda projects35Monitor
Published before and after this one in the same product
- ← EarlierCVE-2026-11332Jun 5, 2026 · Ansible-core: argument injection in ansible-galaxy role install leads to arbitrary code execution31Monitor
- ← EarlierCVE-2026-52902Jun 9, 2026 · Awxkit: path traversal via yaml !include directive18Monitor
- Later →CVE-2026-12383Jul 27, 2026 · Eda-server: externaleventstreamviewset trusts subject header without validation and leaks expected dn30Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| red hat:automation-controller | 0:4.7.11-2.el9ap · Red Hat:ansible_automation_platform_developer:2.6::el9 | Package registry (OSV) |
| red hat:automation-controller-cli | 0:4.7.11-2.el9ap · Red Hat:ansible_automation_platform_developer:2.6::el9 | Package registry (OSV) |
| red hat:automation-controller-server | 0:4.7.11-2.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:automation-controller-ui | 0:4.7.11-2.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:automation-controller-venv-tower | 0:4.7.11-2.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:automation-gateway-server | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-django-ansible-base+activitystream | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-django-ansible-base+api_documentation | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-django-ansible-base+authentication | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-django-ansible-base+channel_auth | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-django-ansible-base+feature_flags | 0:2.6.20260422-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
| red hat:python3.12-markdown | 0:3.10.2-1.el9ap · Red Hat:ansible_automation_platform:2.6::el9 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
—
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
- CVE-2026-127015 days apartPulpcore: pulpcore: relative_path_validator bypass via directory traversal in filesystemexport36Monitor
- CVE-2026-7136534 days apartAwx: webhook status callback ssrf leaks the git pat30Monitor
- CVE-2026-7136640 days apartAwx: notification backends allow ssrf and credential leakage30Monitor
- CVE-2026-7136440 days apartAwx: project archive extraction allows path traversal file writes29Monitor
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- low · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- Low
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-290 · Authentication Bypass by SpoofingCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Exploitation of Trusted IdentifiersCAPEC-21likelihood: High · High
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- Creating a Rogue Certification Authority CertificateCAPEC-459likelihood: Medium · Very High
- Web Services API Signature Forgery Leveraging Hash Function Extension WeaknessCAPEC-461High
- Signature SpoofCAPEC-473
- Signature Spoofing by MisrepresentationCAPEC-476likelihood: Low · High
- Session Credential Falsification through PredictionCAPEC-59likelihood: High · High
- Reusing Session IDs (aka Session Replay)CAPEC-60likelihood: High · High
ATT&CK techniques
- Masquerading: Invalid Code SignatureT1036.001
- Access Token ManipulationT1134
- Access Token Manipulation:Token Impersonation/TheftT1134.001
- Steal Application Access TokenT1528
- Steal Web Session CookieT1539
- Use Alternate Authentication Material:Web Session CookieT1550.004
- Subvert Trust Controls: Code SigningT1553.002
- Adversary-in-the-MiddleT1557
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (5 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.