MEDIUM
vertx: WebSocket HTTP upgrade implementation holds the entire http request in memory before the handshake
Published Oct 10, 2018
6.5
MEDIUMCVSS 3.1
EPSS 2.65%
Description
In version from 3.0.0 to 3.5.3 of Eclipse Vert.x, the WebSocket HTTP upgrade implementation buffers the full http request before doing the handshake, holding the entire request body in memory. There should be a reasonnable limit (8192 bytes) above which the WebSocket gets an HTTP response with the 413 status code and the connection gets closed.
Affected products
-
- Version 3.0StatusaffectedConstraints<unspecified
- Version unspecifiedStatusaffectedConstraints<=3.5.3
- 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| The Eclipse Foundation | Eclipse Vert.x | n/a |
|
No data.
Red Hat Fuse 7.7.0
vertx-core
Fixed · RHSA-2020:3192
Text-Only RHOAR
vert-core
Fixed · RHSA-2018:2946
Red Hat JBoss Fuse 6
vertx-core
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Fuse 7.7.0 | vertx-core | Fixed | RHSA-2020:3192 |
| Text-Only RHOAR | vert-core | Fixed | RHSA-2018:2946 |
| Red Hat JBoss Fuse 6 | vertx-core | Out of support scope | n/a |
No package ranges for this CVE.
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:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
6.5 MEDIUM Red Hat
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
4.0 MEDIUM NVD
AV:N/AC:L/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication Single
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.
2.65% 0.02652
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02652
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 (17 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.65% (0.02652) | 85.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.65% (0.02652) | 83.62th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.06% (0.01062) | 76.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.31% (0.00314) | 71.09th | v3 (v2023.03.01) |
| Jun 25, 2024 | 0.44% (0.00436) | 74.86th | v3 (v2023.03.01) |
| May 29, 2024 | 0.61% (0.00613) | 78.66th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.51% (0.00509) | 75.89th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.51% (0.00509) | 73.84th | v3 (v2023.03.01) |
| Oct 4, 2023 | 0.31% (0.00306) | 66.32th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.22% (0.00225) | 60.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.33% (0.00328) | 66.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.69% (0.03690) | 72.22th | v1 |
| May 8, 2021 | 2.84% (0.02841) | 0.00th | v5 (v2026.06.15) |
| Apr 19, 2021 | 1.76% (0.01762) | 0.00th | v1 |
| Apr 14, 2021 | 1.10% (0.01105) | 0.00th | v1 |
References (35)
- https://access.redhat.com/errata/RHSA-2018:2946 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-12541 Vendor Advisory
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=539170 x_refsource_CONFIRMVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1638391 Issue Tracking
- https://github.com/advisories/GHSA-45xm-v8gq-7jqx Advisory
- https://github.com/eclipse-vertx/vert.x/commit/269a583330695d1418a4f5578f7169350b2e1332
- https://github.com/eclipse-vertx/vert.x/issues/2648 x_refsource_CONFIRMThird Party Advisory
- https://lists.apache.org/thread.html/r01123837ffbfdf5809e0a4ac354ad546e4ca8f18df89ee5a10eeb81b%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r01123837ffbfdf5809e0a4ac354ad546e4ca8f18df89ee5a10eeb81b@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r11789cd6d67ecca2d6f6bbb11e34495e68ee99287b6c59edf5b1a09c%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r11789cd6d67ecca2d6f6bbb11e34495e68ee99287b6c59edf5b1a09c@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r1af71105539fe01fcecb92d2ecd8eea56c515fb1c80ecab4df424553%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r1af71105539fe01fcecb92d2ecd8eea56c515fb1c80ecab4df424553@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r344235b1aea2f7fa2381495df1d77d02b595e3d7e4626e701f7c1062%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r344235b1aea2f7fa2381495df1d77d02b595e3d7e4626e701f7c1062@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r362835e6c7f34324ed24e318b363fcdd20cea91d0cea0b2e1164f73e%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r362835e6c7f34324ed24e318b363fcdd20cea91d0cea0b2e1164f73e@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/r3da899890536af744dec897fbc561fd9810ac45e79a16164b53c31b2%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r3da899890536af744dec897fbc561fd9810ac45e79a16164b53c31b2@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r79789a0afb184abd13a2c07016e6e7ab8e64331f332b630bf82a2eed%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r79789a0afb184abd13a2c07016e6e7ab8e64331f332b630bf82a2eed@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r8db0431ecf93f2dd2128db5ddca897b33ba883b7f126648d6a9e4c47%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r8db0431ecf93f2dd2128db5ddca897b33ba883b7f126648d6a9e4c47@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/r98dc06e2b1c498d0e9eb5038d8e1aefd24e411e50522e7082dd9e0b7%40%3Ccommits.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r98dc06e2b1c498d0e9eb5038d8e1aefd24e411e50522e7082dd9e0b7@%3Ccommits.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rbdc279ecdb7ac496a03befb05a53605c4ce2b67e14f8f4df4cfa1203%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rbdc279ecdb7ac496a03befb05a53605c4ce2b67e14f8f4df4cfa1203@%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/re5ddabee26fbcadc7254d03a5a073d64080a9389adc9e452529664ed%40%3Ccommits.pulsar.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re5ddabee26fbcadc7254d03a5a073d64080a9389adc9e452529664ed@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/reb3cc4f3e10264896a541813c0030ec9d9466ba9b722fe5d4adc91cd%40%3Cissues.bookkeeper.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/reb3cc4f3e10264896a541813c0030ec9d9466ba9b722fe5d4adc91cd@%3Cissues.bookkeeper.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2018-12541
- https://www.cve.org/CVERecord?id=CVE-2018-12541
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner eclipse
Published Oct 10, 2018
Updated Aug 5, 2024
Reserved Jun 18, 2018
Link CVE-2018-12541
CISA Vulnrichment
GHSA-45XM-V8GQ-7JQX Updated n/a