CVE-2026-44946: SAML Authentication Replay in Rancher
Noroxi assessment
Priority: Monitor (action score 38/100)
- 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: 0.38% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: SUSE Rancher 2.11.15, 2.12.11, 2.13.7.
Low priority for now. Upgrade to SUSE Rancher 2.11.15, 2.12.11, 2.13.7 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 SAML authentication replay vulnerability in Rancher's Assertion Consumer Service (ACS) handler did not enforce one-time use of SAML assertion, potentially allowing person in the middle attacks against Rancher, affecting Rancher 2.14.0 before 2.14.3,
- Published
- Jun 30, 2026
- Updated
- Jul 2, 2026
- EPSS
- 0.3% · 32th percentile
- CWE
- CWE-294
Report tools
Action score
38
Monitor
Low priority for now.
- CVSS
- 38 / 40 · 9.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- —
- CNA · suse
- 9.5
- NVD has not scored this yet; the score shown is the CNA’s.
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H
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.
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Noroxi 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.
| Vendor | Product | CPE |
|---|---|---|
| suse | rancher | cpe:2.3:a:suse:rancher |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- suse rancher2.11.0 and later · before 2.11.15
- suse rancher2.12.0 and later · before 2.12.11
- suse rancher2.13.0 and later · before 2.13.7
- suse rancher2.14.0 and later · before 2.14.3
Versions reported by the vendor
Affected version ranges reported by the assigning authority (suse). Independent of NVD's CPE analysis and usually ahead of it.
SUSE Rancher
- 2.14.0 and later · before 2.14.3affected · semver
- 2.13.0 and later · before 2.13.7affected · semver
- 2.12.0 and later · before 2.12.11affected · semver
- 2.11.0 and later · before 2.11.15affected · semver
Same product
suse: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-22649Rancher 'Audit Log' leaks sensitive information40Plan
- CVE-2022-43755Rancher: Non-random authentication token40Plan
- CVE-2021-36782Rancher: Plaintext storage and exposure of credentials in Rancher API and cluster.management.cattle.io object40Plan
Published before and after this one in the same product
- ← EarlierCVE-2026-44939Jun 19, 2026 · Command injection through unsanitized YAML parameter in Rancher37Monitor
- ← EarlierCVE-2026-41052Jun 29, 2026 · Rancher Privilege Escalation from Project Owner to Host37Monitor
- Later →CVE-2026-41053Jun 30, 2026 · Over-inclusive team membership expansion in GitHub App authentication provider for Rancher35Monitor
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 |
|---|---|---|
| SUSE Rancher | 2.11.15 | Vendor (CNA) |
| SUSE Rancher | 2.12.11 | Vendor (CNA) |
| SUSE Rancher | 2.13.7 | Vendor (CNA) |
| SUSE Rancher | 2.14.3 | Vendor (CNA) |
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.
- CVE-2026-7503465 days apartRancher: SAML Assertion Replay29Monitor
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-2025-62878125 days apartLocal Path Provisioner vulnerable to Path Traversal via parameters.pathPattern39Monitor
- CVE-2026-2570548 days apartRancher Extensions have arbitrary file access via path traversal33Monitor
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.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- Integrity
- Availability
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- X
Weakness class (CWE)
CWE-294 · Authentication Bypass by Capture-replayCVSS vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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)
- Session SidejackingCAPEC-102likelihood: High · High
- KerberoastingCAPEC-509High
- Remote Services with Stolen CredentialsCAPEC-555Very High
- Windows Admin Shares with Stolen CredentialsCAPEC-561
- Reusing Session IDs (aka Session Replay)CAPEC-60likelihood: High · High
- Use of Captured Hashes (Pass The Hash)CAPEC-644likelihood: Medium · High
- Use of Captured Tickets (Pass The Ticket)CAPEC-645likelihood: Low · High
- Use of Known Kerberos CredentialsCAPEC-652likelihood: Medium · High
ATT&CK techniques
- Remote ServicesT1021
- Remote Services:SMB/Windows Admin SharesT1021.002
- Email Collection:Remote Email CollectionT1114.002
- External Remote ServicesT1133
- Access Token Manipulation:Token Impersonation/TheftT1134.001
- Use Alternate Authentication Material:Pass The HashT1550.002
- Use Alternate Authentication Material:Pass The TicketT1550.003
- Use Alternate Authentication Material:Web Session CookieT1550.004
- Adversary-in-the-MiddleT1557
- Steal or Forge Kerberos TicketsT1558
- Steal or Forge Kerberos Tickets:KerberoastingT1558.003
Change log
- Fix✗ → ✓
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References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.