CVE-2017-12973
Nimbus JOSE+JWT vulnerable to padding oracle attack
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
CVE-2017-12973- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-354
- Updated
- 2026-11-02
CVE List No score
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
CVE-2017-12973- Updated
- 2026-11-02
EUVDEUVD-2022-4350 No score
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
EUVD-2022-4350- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jfmq-4g4m-99rh
Nimbus JOSE+JWT vulnerable to padding oracle attack
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
GHSA-jfmq-4g4m-99rh- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-354
- Updated
- 2026-11-02
OSV
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
CVE-2017-12973- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-jfmq-4g4m-99rh
Nimbus JOSE+JWT vulnerable to padding oracle attack
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
- Record
GHSA-jfmq-4g4m-99rh- CVSS 3.0
- 3.1 Low
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-354
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
com.nimbusds:nimbus-jose-jwtMaven |
before 4.39 | 4.39 |
com.nimbusds:nimbus-jose-jwtMaven |
before 4.39, plus listed versions 2.102.10.12.11.02.12.02.13.0 Show 45 moreShow less2.13.12.14.02.15.02.15.12.15.22.162.172.17.12.17.22.182.18.12.18.22.192.19.12.202.212.222.22.12.232.242.252.262.26.12.93.03.13.1.13.1.23.103.23.2.13.2.23.33.43.53.63.73.83.8.13.8.23.93.9.13.9.24.04.0-rc1 |
4.39 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2017-12973 is a low vulnerability (CVSS 3.1) in Connect2id Nimbus Jose\+jwt, published August 20, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.64%, the 50th percentile. Fixed in com.nimbusds:nimbus-jose-jwt 4.39.
References
bitbucket.org/connect2id/nimbus-jose-jwt/commits/6a29f10f723f406eb25555f55842c59a43a38912
nvd.nist.gov/vuln/detail/CVE-2017-12973
github.com/advisories/GHSA-jfmq-4g4m-99rh
Left out here: 56 versions. The JSON record has them.