go-jose before 1.0.4 suffers from multiple signatures exploitation. The go-jose library supports messages with multiple signatures. However, when validating a signed message the API did not indicate which signature was valid, which could potentially lead to confusion. For example, users of the library might mistakenly read protected header values from an attached signature that was different from the one originally validated.
CVE-2016-9122
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 2.0%, top 22% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EG Risk
- 39(Track)EG Risk 39/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity75% × 45%Exploitation2% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 78.3%
- KEV
- Not listed
Published
March 28, 2017
Last Modified
May 13, 2026
References (6)
- support@hackeronehttp://www.openwall.com/lists/oss-security/2016/11/03/1
- support@hackeronehttps://github.com/square/go-jose/commit/2c5656adca9909843c4ff50acf1d2cf8f32da7e6
- support@hackeronehttps://hackerone.com/reports/169629
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2016/11/03/1
- af854a3a-2127-422b-91ae-364da2661108https://github.com/square/go-jose/commit/2c5656adca9909843c4ff50acf1d2cf8f32da7e6
- af854a3a-2127-422b-91ae-364da2661108https://hackerone.com/reports/169629
Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| gopkg.in/square/go-jose.v1 | — | 1.1.0 | — |
Data Freshness Timeline
(refreshed 14× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 01:24 UTCEG score recompute
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Frequently asked(5)
What is CVE-2016-9122?
When was CVE-2016-9122 disclosed?
Is CVE-2016-9122 actively exploited?
What is the CVSS score of CVE-2016-9122?
How do I remediate CVE-2016-9122?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2016-9122
Is Your Infrastructure Affected by CVE-2016-9122?
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