MEDIUM
The _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA)
Published Sep 1, 2016
6.0
MEDIUMCVSS 4.0
EPSS 2.25%
Description
The _Rsa15 class in the RSA 1.5 algorithm implementation in jwa.py in jwcrypto before 0.3.2 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).
Affected products
Remediation
No remediation recorded yet.
Metrics
6.0 MEDIUM GHSA
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Attack Vector Network
Attack Complexity Low
Attack Requirements Present
Privileges Required Low
User Interaction None
Vulnerable System Confidentiality High
Vulnerable System Integrity None
Vulnerable System Availability None
Subsequent System Confidentiality None
Subsequent System Integrity None
Subsequent System Availability None
5.3 MEDIUM NVD
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
5.3 MEDIUM GHSA
CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required Low
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.
2.25% 0.02245
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02245
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.25% (0.02245) | 82.25th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.23% (0.02235) | 80.43th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.45% (0.00445) | 61.33th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.20% (0.00200) | 58.88th | v3 (v2023.03.01) |
| Jul 10, 2024 | 0.17% (0.00168) | 53.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00168) | 51.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Sep 22, 2022 | 1.13% (0.01132) | 54.59th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.13% (0.01132) | 52.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
Weaknesses (1)
References (9)
- http://www.securityfocus.com/bid/92729 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- https://github.com/advisories/GHSA-wg33-x934-3ghh Advisory
- https://github.com/latchset/jwcrypto/commit/eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba x_refsource_CONFIRMIssue TrackingPatchVendor Advisory
- https://github.com/latchset/jwcrypto/issues/65 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://github.com/latchset/jwcrypto/pull/66 x_refsource_CONFIRMIssue TrackingPatch
- https://github.com/latchset/jwcrypto/releases/tag/v0.3.2 x_refsource_CONFIRMPatchVendor Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/jwcrypto/PYSEC-2016-4.yaml
- https://nvd.nist.gov/vuln/detail/CVE-2016-6298
- https://web.archive.org/web/20200227230613/http://www.securityfocus.com/bid/92729
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/92729 | vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry | |
| https://github.com/advisories/GHSA-wg33-x934-3ghh | Advisory | |
| https://github.com/latchset/jwcrypto/commit/eb5be5bd94c8cae1d7f3ba9801377084d8e5a7ba | x_refsource_CONFIRMIssue TrackingPatchVendor Advisory | |
| https://github.com/latchset/jwcrypto/issues/65 | x_refsource_CONFIRMIssue TrackingVendor Advisory | |
| https://github.com/latchset/jwcrypto/pull/66 | x_refsource_CONFIRMIssue TrackingPatch | |
| https://github.com/latchset/jwcrypto/releases/tag/v0.3.2 | x_refsource_CONFIRMPatchVendor Advisory | |
| https://github.com/pypa/advisory-database/tree/main/vulns/jwcrypto/PYSEC-2016-4.yaml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2016-6298 | ||
| https://web.archive.org/web/20200227230613/http://www.securityfocus.com/bid/92729 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Sep 1, 2016
Updated Aug 6, 2024
Reserved Jul 26, 2016
Link CVE-2016-6298
CISA Vulnrichment
GHSA-WG33-X934-3GHH Updated n/a