MEDIUM
A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key
Published Aug 22, 2019
5.9
MEDIUMCVSS 3.0
EPSS 1.48%
Description
A cryptographic issue in OpenPGP.js <=4.2.0 allows an attacker who is able provide forged messages and gain feedback about whether decryption of these messages succeeded to conduct an invalid curve attack in order to gain the victim's ECDH private key.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
5.9 MEDIUM NVD
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.48% 0.01480
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01480
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.48% (0.01480) | 72.98th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.48% (0.01480) | 70.46th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.29% (0.00289) | 50.22th | v4 (v2025.03.14) |
| Dec 17, 2024 | 0.77% (0.00769) | 81.05th | v3 (v2023.03.01) |
| Dec 12, 2024 | 2.48% (0.02476) | 90.46th | v3 (v2023.03.01) |
| Jan 18, 2024 | 2.75% (0.02754) | 89.54th | v3 (v2023.03.01) |
| Dec 16, 2023 | 2.89% (0.02889) | 89.70th | v3 (v2023.03.01) |
| Sep 3, 2023 | 2.06% (0.02058) | 87.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.28% (0.01282) | 83.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.30% (0.12300) | 89.42th | v2 (v2022.01.01) |
| Feb 3, 2022 | 6.21% (0.06208) | 81.93th | v1 |
| Jan 6, 2022 | 6.21% (0.06208) | 81.75th | v1 |
| Jan 5, 2022 | 1.45% (0.01454) | 72.86th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
Weaknesses (1)
References (10)
- http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html x_refsource_MISCThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-77jf-fjjf-xcww Advisory
- https://github.com/openpgpjs/openpgpjs/pull/853 x_refsource_CONFIRMThird Party Advisory
- https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0 x_refsource_CONFIRMRelease Notes
- https://nvd.nist.gov/vuln/detail/CVE-2019-9155
- https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ x_refsource_MISCExploitThird Party Advisory
- https://snyk.io/vuln/SNYK-JS-OPENPGP-460225
- https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1 x_refsource_MISCThird Party Advisory
- https://www.npmjs.com/advisories/1159
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/154191/OpenPGP.js-4.2.0-Signature-Bypass-Invalid-Curve-Attack.html | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-77jf-fjjf-xcww | Advisory | |
| https://github.com/openpgpjs/openpgpjs/pull/853 | x_refsource_CONFIRMThird Party Advisory | |
| https://github.com/openpgpjs/openpgpjs/pull/853/commits/7ba4f8c655e7fd7706e8d7334e44b40fdf56c43e | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/openpgpjs/openpgpjs/releases/tag/v4.3.0 | x_refsource_CONFIRMRelease Notes | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-9155 | ||
| https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ | x_refsource_MISCExploitThird Party Advisory | |
| https://snyk.io/vuln/SNYK-JS-OPENPGP-460225 | ||
| https://www.bsi.bund.de/SharedDocs/Downloads/EN/BSI/Publications/Studies/Mailvelope_Extensions/Mailvelope_Extensions_pdf.html#download=1 | x_refsource_MISCThird Party Advisory | |
| https://www.npmjs.com/advisories/1159 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Aug 22, 2019
Updated Aug 4, 2024
Reserved Feb 25, 2019
Link CVE-2019-9155
CISA Vulnrichment
GHSA-77JF-FJJF-XCWW Updated n/a