HIGH
nodejs-semver: npm Regular Expression Denial of Service during package versions parsing
Published Jan 23, 2017
7.5
HIGHCVSS 3.0
EPSS 6.49%
Description
The semver package before 4.3.2 for Node.js allows attackers to cause a denial of service (CPU consumption) via a long version string, aka a "regular expression denial of service (ReDoS)."
Affected products
No data.
No data.
Red Hat Software Collections
nodejs010-nodejs-semver
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections | nodejs010-nodejs-semver | Will not fix | n/a |
semver
npm
Introduced 1.0.4 Fixed 4.3.2
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | semver | 1.0.4 | 4.3.2 |
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
7.8 HIGH NVD
AV:N/AC:L/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.49% 0.06488
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06488
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.49% (0.06488) | 93.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.44% (0.06435) | 92.81th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.02% (0.01017) | 75.18th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.10% (0.02100) | 73.42th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.02% (0.01017) | 75.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00242) | 64.82th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.24% (0.00242) | 63.35th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.24% (0.00242) | 60.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
Weaknesses (3)
References (14)
- http://www.openwall.com/lists/oss-security/2016/04/20/11 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/86957 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8855 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1209496 Issue Tracking
- https://github.com/advisories/GHSA-x6fg-f45m-jf5q Advisory
- https://github.com/github/advisory-database/pull/7102
- https://github.com/npm/node-semver/commit/5c4c9f6e26c7052a42b5ced2a7481c5c9b4363a0
- https://github.com/npm/node-semver/commit/c80180d8341a8ada0236815c29a2be59864afd70
- https://nodesecurity.io/advisories/31 x_refsource_CONFIRMPatchVendor Advisory
- https://nodesecurity.io/advisories/semver_redos
- https://nvd.nist.gov/vuln/detail/CVE-2015-8855
- https://www.cve.org/CVERecord?id=CVE-2015-8855
- https://www.npmjs.com/advisories/31
- https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/04/20/11 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/86957 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-8855 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1209496 | Issue Tracking | |
| https://github.com/advisories/GHSA-x6fg-f45m-jf5q | Advisory | |
| https://github.com/github/advisory-database/pull/7102 | ||
| https://github.com/npm/node-semver/commit/5c4c9f6e26c7052a42b5ced2a7481c5c9b4363a0 | ||
| https://github.com/npm/node-semver/commit/c80180d8341a8ada0236815c29a2be59864afd70 | ||
| https://nodesecurity.io/advisories/31 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://nodesecurity.io/advisories/semver_redos | ||
| https://nvd.nist.gov/vuln/detail/CVE-2015-8855 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-8855 | ||
| https://www.npmjs.com/advisories/31 | ||
| https://www.owasp.org/index.php/Regular_expression_Denial_of_Service_-_ReDoS |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 23, 2017
Updated Aug 6, 2024
Reserved Apr 20, 2016
Link CVE-2015-8855
CISA Vulnrichment
GHSA-X6FG-F45M-JF5Q Updated n/a