MEDIUM
libsass: uncontrolled recursion in Sass:Eval:operator()(Sass:Binary_Expression*) in eval.cpp
Published Nov 6, 2019
6.5
MEDIUMCVSS 3.1
EPSS 1.51%
Description
LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operator()(Sass::Binary_Expression*) in eval.cpp.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
6.5 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.51% 0.01512
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
EPSS probability 0.01512
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.51% (0.01512) | 73.58th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.51% (0.01512) | 71.07th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.59% (0.00590) | 66.66th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.74% (0.01743) | 71.19th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.10% (0.00096) | 40.85th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.10% (0.00096) | 40.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.10% (0.00096) | 38.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.56% (0.02561) | 61.74th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v5 (v2026.06.15) |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
Weaknesses (1)
References (5)
- https://access.redhat.com/security/cve/CVE-2019-18797 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1852071 Issue Tracking
- https://github.com/sass/libsass/issues/3000 x_refsource_MISCExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-18797
- https://www.cve.org/CVERecord?id=CVE-2019-18797
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2019-18797 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1852071 | Issue Tracking | |
| https://github.com/sass/libsass/issues/3000 | x_refsource_MISCExploitThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-18797 | ||
| https://www.cve.org/CVERecord?id=CVE-2019-18797 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 6, 2019
Updated Aug 5, 2024
Reserved Nov 6, 2019
Link CVE-2019-18797
CISA Vulnrichment
Updated n/a