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CVE-2018-12541
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…
- 6.5MediumCVSS base score
- 2.7%Exploitation in 30 daysEPSS · top 14% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By eclipse
- 4 months later
· 4 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 2.7% · top 14% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
The Eclipse Foundation · Eclipse Vert.x
- affected 3.0 – < unspecified
- affected unspecified – ≤ 3.5.3
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenio.vertx:vertx-coreGHSA-45xm-v8gq-7jqx (opens in a new tab)
References
16
- https://bugs.eclipse.org/bugs/show_bug.cgi?id=539170 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/eclipse-vertx/vert.x/issues/2648 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2018:2946 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- [pulsar-commits] 20201215 [GitHub] [pulsar] yanshuchong opened a new issue #8967: CVSS issue list (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210419 [GitHub] [pulsar] lhotari commented on pull request #10261: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210419 [GitHub] [bookkeeper] lhotari opened a new pull request #2693: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210419 [GitHub] [pulsar] lhotari opened a new pull request #10261: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210419 [pulsar] branch master updated: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (#10261) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210419 [GitHub] [pulsar] lhotari edited a comment on pull request #10261: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210419 [GitHub] [pulsar] eolivelli merged pull request #10261: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210421 [GitHub] [bookkeeper] lhotari commented on pull request #2693: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210507 [GitHub] [bookkeeper] dlg99 commented on pull request #2693: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [pulsar-commits] 20210513 [pulsar] 30/46: [Security] Upgrade vertx to 3.9.7, addresses CVE-2018-12541 (#10261) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210618 [GitHub] [bookkeeper] lhotari commented on pull request #2693: [Security] Upgrade vertx to 3.9.8, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-issues] 20210623 [GitHub] [bookkeeper] sijie merged pull request #2693: [Security] Upgrade vertx to 3.9.8, addresses CVE-2018-12541 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [bookkeeper-commits] 20210817 [bookkeeper] 01/03: [Security] Upgrade vertx to 3.9.8, addresses CVE-2018-12541 (#2693) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0495 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-45xm-v8gq-7jqx (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-12541)Record last updated .