MEDIUM
Denial of Service (DoS)
Published Jul 9, 2020
5.3
MEDIUMCVSS 3.1
EPSS 4.98%
Description
Incorrect handling of Upgrade header with the value websocket leads in crashing of containers hosting sockjs apps. This affects the package sockjs before 0.3.20.
Affected products
- Vendor n/a Product Sockjs Defaultn/a
- Version unspecifiedStatusaffectedConstraints<0.3.20
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Sockjs | n/a |
|
- < 0.3.20
No data.
Red Hat OpenShift Container Platform 4
openshift4/ose-prometheus
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat OpenShift Container Platform 4 | openshift4/ose-prometheus | Fix deferred | n/a |
sockjs
npm
Introduced 0 Fixed 0.3.20
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| npm | sockjs | 0 | 0.3.20 |
Remediation
Red Hat mitigation
There is no mitigation for this issue, the flaw can only be resolved by applying updates.
Metrics
No CVSS v4.0 score for this CVE.
5.3 MEDIUM NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
1 other source (CVE.org) ▾
5.3 MEDIUM CVE.org
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
Exploit Maturity Proof of Concept
No CVSS v3.0 score for this CVE.
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
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.
4.98% 0.04978
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.04978
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 4.98% (0.04978) | 91.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.98% (0.04978) | 91.06th | v5 (v2026.06.15) |
| Jun 11, 2026 | 10.83% (0.10834) | 93.53th | v4 (v2025.03.14) |
| Nov 21, 2025 | 15.95% (0.15951) | 94.49th | v4 (v2025.03.14) |
| Nov 18, 2025 | 14.23% (0.14226) | 93.76th | v4 (v2025.03.14) |
| Aug 18, 2025 | 15.95% (0.15951) | 94.49th | v4 (v2025.03.14) |
| Apr 1, 2025 | 11.97% (0.11974) | 93.14th | v4 (v2025.03.14) |
| Mar 30, 2025 | 15.95% (0.15951) | 94.19th | v4 (v2025.03.14) |
| Mar 29, 2025 | 61.15% (0.61149) | 97.58th | v4 (v2025.03.14) |
| Mar 28, 2025 | 15.95% (0.15951) | 94.20th | v4 (v2025.03.14) |
| Mar 27, 2025 | 61.15% (0.61149) | 98.06th | v4 (v2025.03.14) |
| Mar 20, 2025 | 15.95% (0.15951) | 94.25th | v4 (v2025.03.14) |
| Mar 19, 2025 | 61.15% (0.61149) | 98.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 15.95% (0.15951) | 94.26th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.91% (0.00914) | 83.53th | v3 (v2023.03.01) |
| Jun 15, 2024 | 0.91% (0.00914) | 82.92th | v3 (v2023.03.01) |
| May 30, 2024 | 0.80% (0.00801) | 81.64th | v3 (v2023.03.01) |
| Mar 26, 2024 | 0.59% (0.00589) | 77.80th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.51% (0.00509) | 75.88th | v3 (v2023.03.01) |
| Mar 25, 2023 | 0.51% (0.00509) | 72.96th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00447) | 71.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.74% (0.10742) | 94.66th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.74% (0.10742) | 94.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.74% (0.10742) | 87.74th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.57% (0.06572) | 82.64th | v1 |
| Jan 6, 2022 | 6.57% (0.06572) | 82.47th | v1 |
| Sep 1, 2021 | 6.57% (0.06572) | 90.24th | v1 |
| Apr 14, 2021 | 6.57% (0.06572) | 0.00th | v1 |
References (12)
- https://access.redhat.com/security/cve/CVE-2020-7693 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1856371 Issue Tracking
- https://github.com/advisories/GHSA-c9g6-9335-x697 Advisory
- https://github.com/andsnw/sockjs-dos-py x_refsource_MISCExploitThird Party Advisory
- https://github.com/sockjs/sockjs-node/commit/dd7e642cd69ee74385825816d30642c43e051d16 x_refsource_MISCPatchThird Party Advisory
- https://github.com/sockjs/sockjs-node/issues/252 x_refsource_MISCExploitPatchThird Party Advisory
- https://github.com/sockjs/sockjs-node/pull/265 x_refsource_MISCPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2020-7693
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-575448 x_refsource_MISCExploitThird Party Advisory
- https://snyk.io/vuln/SNYK-JS-SOCKJS-575261 x_refsource_MISCExploitThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2020-7693
- https://www.npmjs.com/package/sockjs
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2020-7693 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1856371 | Issue Tracking | |
| https://github.com/advisories/GHSA-c9g6-9335-x697 | Advisory | |
| https://github.com/andsnw/sockjs-dos-py | x_refsource_MISCExploitThird Party Advisory | |
| https://github.com/sockjs/sockjs-node/commit/dd7e642cd69ee74385825816d30642c43e051d16 | x_refsource_MISCPatchThird Party Advisory | |
| https://github.com/sockjs/sockjs-node/issues/252 | x_refsource_MISCExploitPatchThird Party Advisory | |
| https://github.com/sockjs/sockjs-node/pull/265 | x_refsource_MISCPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2020-7693 | ||
| https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-575448 | x_refsource_MISCExploitThird Party Advisory | |
| https://snyk.io/vuln/SNYK-JS-SOCKJS-575261 | x_refsource_MISCExploitThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2020-7693 | ||
| https://www.npmjs.com/package/sockjs |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner snyk
Published Jul 9, 2020
Updated Sep 17, 2024
Reserved Jan 21, 2020
Link CVE-2020-7693
CISA Vulnrichment
GHSA-C9G6-9335-X697 Updated n/a