CVE-2021-44878
- Source
- https://cve.org/CVERecord?id=CVE-2021-44878
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44878.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-44878
- Aliases
- Published
- 2022-01-06T13:15:08Z
- Modified
- 2026-10-20T14:30:05Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
If an OpenID Connect provider supports the "none" algorithm (i.e., tokens with no signature), pac4j v5.3.0 (and prior) does not refuse it without an explicit configuration on its side or for the "idtoken" response type which is not secure and violates the OpenID Core Specification. The "none" algorithm does not require any signature verification when validating the ID tokens, which allows the attacker to bypass the token validation by injecting a malformed ID token using "none" as the value of "alg" key in the header with an empty signature value.
- References
Affected packages
Git / github.com/pac4j/pac4j
Affected ranges
- Type
- GIT
- Repo
- https://github.com/pac4j/pac4j
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:pac4j:pac4j:*:*:*:*:*:*:*:*", "range": [ { "introduced": "0" }, { "fixed": "4.5.5" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:pac4j:pac4j:*:*:*:*:*:*:*:*", "range": [ { "introduced": "5.0.0" }, { "fixed": "5.3.1" } ], "source": "CPE_RANGE" }, { "range": [ { "fixed": "22b82ffd702a132d9f09da60362fc6264fc281ae" } ], "source": "REFERENCES_COMMIT" } ] }
Affected versions
pac4j-1.*
pac4j-1.4.0
pac4j-1.4.1
pac4j-1.5.0
pac4j-1.5.1
pac4j-1.6.0
pac4j-1.6.0-RC1
pac4j-1.7.0
pac4j-1.8.0
pac4j-1.8.0-RC1
pac4j-1.8.1
pac4j-1.8.2
pac4j-1.8.3
pac4j-1.9.0
pac4j-1.9.1
pac4j-1.9.2
pac4j-1.9.3
pac4j-2.*
pac4j-2.0.0
pac4j-2.0.0-RC1
pac4j-2.0.0-RC2
pac4j-2.1.0
pac4j-3.*
pac4j-3.0.0
pac4j-3.0.0-RC1
pac4j-3.0.0-RC2
pac4j-3.0.1
pac4j-3.1.0
pac4j-3.2.0
pac4j-3.3.0
pac4j-3.4.0
pac4j-4.*
pac4j-4.0.0
pac4j-4.0.0-RC1
pac4j-4.0.0-RC2
pac4j-4.0.0-RC3
pac4j-4.0.1
pac4j-4.0.2
pac4j-4.0.3
pac4j-4.1.0
pac4j-4.2.0
pac4j-4.3.1
pac4j-4.4.0
pac4j-4.5.0
pac4j-4.5.1
pac4j-4.5.2
pac4j-4.5.3
pac4j-4.5.4
pac4j-5.*
pac4j-5.0.0
pac4j-5.0.1
pac4j-5.1.0
pac4j-5.1.1
pac4j-5.1.2
pac4j-5.1.3
pac4j-5.1.4
pac4j-5.1.5
scribe-up-1.*
scribe-up-1.0.0
scribe-up-1.1.0
scribe-up-1.3.0
scribe-up-1.3.1
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44878.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"142734875259220979380034538026834823159",
"93516544702623769002709036197105832465",
"78151112510877933723915571325399453673",
"186976575094375344517935912759978704618",
"328621840333553987638841802560172542274",
"31195574165791698271710333171444427955",
"33359846202687368761658077525127785892",
"181154821364886295254219673091852051766",
"177591155745275731061717691244081747862",
"206582387734264907023769571307585263297",
"165932322687329723717707126492868335996",
"68632315901324971227108669574155793477",
"195659575427657192723094720092080624905",
"236052930497564336736705324012256346019"
],
"threshold": 0.9
},
"id": "CVE-2021-44878-1fcca557",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/credentials/authenticator/UserInfoOidcAuthenticator.java"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"43943432238979706888797464452912863518",
"182716811072104724516345116051238537590",
"308248797421994447634602175309512946969",
"307245983942101714527022942220442871021",
"34005432408164938541023632046895676987",
"289845892867212993275457587660900103477",
"278772829820637479633183678612398312233",
"213127895201863992657303274028504330555",
"122981064431604722275789699601182556171"
],
"threshold": 0.9
},
"id": "CVE-2021-44878-7bfe6e3b",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/config/OidcConfiguration.java"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"244296901486418034151498386119171688002",
"283952748683071184838642401581082240219",
"76363101135699634511413522579674031927",
"226915231271433674858616834027959816478",
"97518857489170432927350744390244171505",
"233765041351676768397588464809275487601",
"209445786348199690161093809124748258532",
"84849930009010021822456829511175838597",
"187947379788689051867086956802052762134",
"202741386810270184480202936470288811247"
],
"threshold": 0.9
},
"id": "CVE-2021-44878-ca015dcb",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/profile/creator/TokenValidator.java"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "309649846393890486951584006561382897584",
"length": 881
},
"id": "CVE-2021-44878-d1c2c860",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/credentials/authenticator/UserInfoOidcAuthenticator.java",
"function": "fetchOidcProfile"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "168662865657726720582909440363251566777",
"length": 745
},
"id": "CVE-2021-44878-d8095ef3",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/config/OidcConfiguration.java",
"function": "toString"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "312411212405526232696226767707092061916",
"length": 1313
},
"id": "CVE-2021-44878-f741ac07",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/pac4j/pac4j/commit/22b82ffd702a132d9f09da60362fc6264fc281ae",
"target": {
"file": "pac4j-oidc/src/main/java/org/pac4j/oidc/profile/creator/TokenValidator.java",
"function": "TokenValidator"
}
}
]
vanir_signatures_modified
"2026-10-20T14:30:05Z"