HIGH
Improper Verification of a Cryptographic Signature in OpenPGP.js <=4.1.2 allows an attacker to forge signed messages by replacing its signatures with a "standalone" or "timestamp" signature
Published Aug 22, 2019
7.5
HIGHCVSS 3.0
EPSS 2.01%
Description
Improper Verification of a Cryptographic Signature in OpenPGP.js <=4.1.2 allows an attacker to forge signed messages by replacing its signatures with a "standalone" or "timestamp" signature.
Affected products
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:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact High
Availability Impact None
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.01% 0.02013
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02013
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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.01% (0.02013) | 80.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.01% (0.02013) | 78.27th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.36% (0.00362) | 55.41th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.62% (0.02623) | 76.10th | v4 (v2025.03.14) |
| Mar 28, 2025 | 0.36% (0.00362) | 55.46th | v4 (v2025.03.14) |
| Mar 27, 2025 | 2.62% (0.02623) | 83.86th | v4 (v2025.03.14) |
| Mar 20, 2025 | 0.36% (0.00362) | 55.64th | v4 (v2025.03.14) |
| Mar 19, 2025 | 2.62% (0.02623) | 84.02th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.36% (0.00362) | 56.19th | v4 (v2025.03.14) |
| Jul 20, 2024 | 2.24% (0.02241) | 89.70th | v3 (v2023.03.01) |
| Jan 18, 2024 | 2.24% (0.02241) | 88.44th | v3 (v2023.03.01) |
| Dec 16, 2023 | 2.35% (0.02352) | 88.65th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.67% (0.01671) | 86.09th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.04% (0.01039) | 81.63th | 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 | 8.93% (0.08934) | 82.99th | 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-qwqc-28w3-fww6 Advisory
- https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/openpgpjs/openpgpjs/pull/816 x_refsource_CONFIRMThird Party Advisory
- https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0 x_refsource_CONFIRMRelease Notes
- https://nvd.nist.gov/vuln/detail/CVE-2019-9153
- https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ x_refsource_MISCExploitThird Party Advisory
- https://snyk.io/vuln/SNYK-JS-OPENPGP-460248
- 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/1160
| 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-qwqc-28w3-fww6 | Advisory | |
| https://github.com/openpgpjs/openpgpjs/pull/797/commits/327d3e5392a6f59a4270569d200c7f7a2bfc4cbc | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/openpgpjs/openpgpjs/pull/816 | x_refsource_CONFIRMThird Party Advisory | |
| https://github.com/openpgpjs/openpgpjs/releases/tag/v4.2.0 | x_refsource_CONFIRMRelease Notes | |
| https://nvd.nist.gov/vuln/detail/CVE-2019-9153 | ||
| https://sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-openpgp-js/ | x_refsource_MISCExploitThird Party Advisory | |
| https://snyk.io/vuln/SNYK-JS-OPENPGP-460248 | ||
| 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/1160 |
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-2019-9153
CISA Vulnrichment
GHSA-QWQC-28W3-FWW6 Updated n/a