{"record":{"id":"9dcee6cc50a75249","repo":"spring-projects/spring-security","slug":"there-is-no-password-encoder-mapped-for-the-id-s","errorCode":null,"errorMessage":"There is no password encoder mapped for the id '%s'. Check your configuration to ensure it matches one of the registered encoders.","messagePattern":"There is no password encoder mapped for the id '(.+?)'\\. Check your configuration to ensure it matches one of the registered encoders\\.","errorType":"validation","errorClass":"IllegalArgumentException","httpStatus":null,"severity":"error","filePath":"crypto/src/main/java/org/springframework/security/crypto/password/DelegatingPasswordEncoder.java","lineNumber":298,"sourceCode":"\t\treturn prefixEncodedPassword.substring(start + this.idSuffix.length());\n\t}\n\n\t/**\n\t * Default {@link PasswordEncoder} that throws an exception telling that a suitable\n\t * {@link PasswordEncoder} for the id could not be found.\n\t */\n\tprivate class UnmappedIdPasswordEncoder extends AbstractValidatingPasswordEncoder {\n\n\t\t@Override\n\t\tprotected String encodeNonNullPassword(String rawPassword) {\n\t\t\tthrow new UnsupportedOperationException(\"encode is not supported\");\n\t\t}\n\n\t\t@Override\n\t\tprotected boolean matchesNonNull(String rawPassword, String prefixEncodedPassword) {\n\t\t\tString id = extractId(prefixEncodedPassword);\n\t\t\tif (id != null && !id.isBlank()) {\n\t\t\t\tthrow new IllegalArgumentException(String.format(NO_PASSWORD_ENCODER_MAPPED, id));\n\t\t\t}\n\t\t\tif (prefixEncodedPassword != null && !prefixEncodedPassword.isBlank()) {\n\t\t\t\tint start = prefixEncodedPassword.indexOf(DelegatingPasswordEncoder.this.idPrefix);\n\t\t\t\tint end = prefixEncodedPassword.indexOf(DelegatingPasswordEncoder.this.idSuffix, start);\n\t\t\t\tif (start < 0 && end < 0) {\n\t\t\t\t\tthrow new IllegalArgumentException(NO_PASSWORD_ENCODER_PREFIX);\n\t\t\t\t}\n\t\t\t}\n\t\t\tthrow new IllegalArgumentException(String.format(MALFORMED_PASSWORD_ENCODER_PREFIX,\n\t\t\t\t\tDelegatingPasswordEncoder.this.idPrefix, DelegatingPasswordEncoder.this.idSuffix));\n\t\t}\n\n\t}\n\n}\n","sourceCodeStart":280,"sourceCodeEnd":314,"githubUrl":"https://github.com/spring-projects/spring-security/blob/96852e8860138a482cb13d1479573f24ff6443c6/crypto/src/main/java/org/springframework/security/crypto/password/DelegatingPasswordEncoder.java#L280-L314","documentation":"During matches(), the '{id}' prefix extracted from the stored password was non-blank but not registered in the encoder map. Since no default matcher resolves it, the library throws this IllegalArgumentException telling you to align configuration with the stored ids.","triggerScenarios":"matches(rawPassword, encodedPassword) called with a stored password like '{argon2}...' or '{noop}...' when the DelegatingPasswordEncoder was built without an 'argon2'/'noop' entry in idToPasswordEncoder and without setDefaultPasswordEncoderForMatches.","commonSituations":"Passwords encoded by a different application/version with more encoder types; Spring Security upgrade where PasswordEncoderFactories default ids changed; config map missing the 'noop' id so plaintext-stored passwords fail; id case mismatch ('Bcrypt' vs 'bcrypt').","solutions":["Add the missing id to the encoder map used to build DelegatingPasswordEncoder (e.g. encoders.put(\"noop\", PasswordEncoderFactories.createDelegatingPasswordEncoder() style NoOpPasswordEncoder))","Call setDefaultPasswordEncoderForMatches(encoder) to give unknown ids a fallback","Inspect the actual stored passwords' id prefixes and register every distinct one","Normalize stored ids to lowercase to avoid case mismatches"],"exampleFix":"// before\nMap<String, PasswordEncoder> encoders = Map.of(\"bcrypt\", new BCryptPasswordEncoder());\n// stored password is '{noop}secret'\n// after\nMap<String, PasswordEncoder> encoders = new HashMap<>();\nencoders.put(\"bcrypt\", new BCryptPasswordEncoder());\nencoders.put(\"noop\", NoOpPasswordEncoder.getInstance());\nPasswordEncoder encoder = new DelegatingPasswordEncoder(\"bcrypt\", encoders, \"{\", \"}\");\n","handlingStrategy":"validation","validationCode":"String id = encodedPassword.contains(\"{\") && encodedPassword.contains(\"}\")\n        ? encodedPassword.substring(1, encodedPassword.indexOf('}')) : null;\nif (id != null && !registeredIds.contains(id)) {\n    log.warn(\"Stored password uses unregistered encoder id: {}\", id);\n}","typeGuard":null,"tryCatchPattern":"try {\n    return encoder.matches(rawPassword, storedPassword);\n} catch (IllegalArgumentException e) {\n    log.error(\"Unmapped encoder id in stored password: {}\", e.getMessage());\n    return false;\n}","preventionTips":["Register every encoder id present in your password store (including 'noop') in the map","Scan the credentials column on startup for distinct {id} prefixes and assert they are all registered","Call setDefaultPasswordEncoderForMatches to absorb unknown ids","Compare ids case-insensitively when migrating data"],"tags":["spring-security","password-matching","unknown-encoder-id","configuration"],"backgroundTag":"invalid-enum-value","analyzedSha":"96852e8860138a482cb13d1479573f24ff6443c6","analyzedAt":"2026-09-10T23:25:23.477Z","contentChangedAt":"2026-09-10T23:25:23.477Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}