Reachable assertion in Entr'ouvert Lasso
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-617.
Summary
A denial of service vulnerability exists in the g_assert_not_reached functionality of Entr'ouvert Lasso 2.5.1 and 2.8.2. A specially crafted SAML assertion response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Entr'ouvert | Lasso | 2.5.1; 2.8.2 | — | No fix listed | CNA |
- Lasso VendorEntr'ouvert Affected 2.5.1; 2.8.2 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:entrouvert:lasso:2.5.1:*:*:*:*:*:*:* | 2.5.1 | Vulnerable | Entr'ouvert |
| cpe:2.3:a:entrouvert:lasso:2.8.2:*:*:*:*:*:*:* | 2.8.2 | Vulnerable | Entr'ouvert |
- cpe:2.3:a:entrouvert:lasso:2.5.1:*:*:*:*:*:*:* Versions 2.5.1 Vulnerable ·Entr'ouvert
- cpe:2.3:a:entrouvert:lasso:2.8.2:*:*:*:*:*:*:* Versions 2.8.2 Vulnerable ·Entr'ouvert
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-46705
- 2026-10-03 Alias added: GHSA-pmj8-xcc6-hfrp
References
More Entr'ouvert Lasso vulnerabilities
- TI-2025-29740 Type confusion in Entr'ouvert Lasso CVSS 3.1CRITICAL 9.8
- TI-2015-01601 The prefix variable in the get_or_define_ns function in Lasso before commit… CVSS 3.0HIGH 7.5
- TI-2021-09336 Lasso all versions prior to 2.7.0 has improper verification of a cryptographic signature. CVSS 3.1HIGH 7.5
- TI-2025-29429 Memory leak in Entr'ouvert Lasso CVSS 3.1HIGH 7.5
- TI-2025-29125 NULL pointer dereference in Entr'ouvert Lasso CVSS 3.1HIGH 7.5
- TI-2009-00048 Lasso 2.2.1 and earlier does not properly check the return value from the OpenSSL… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2025-46705 · CVE Program
- CVE-2025-46705 · NVD
- FIRST EPSS
- GHSA-pmj8-xcc6-hfrp · GitHub Advisory Database · CC BY 4.0
- CVE-2025-46705 · Red Hat security data · CC BY 4.0
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