CVE-2026-116585

About vulnerability

Summary

Decrypting a ciphertext with “A128CBC-HS256”, “A192CBC-HS384”, or “A256CBC-HS512” can result in a panic on untrusted input.

Note this advisory is the same as https://github.com/go-jose/go-jose/security/advisories/GHSA-6mp9-8xrw-74r4.

Details

Insufficient validation of parameters can lead to attempting to index into an empty buffer. See https://github.com/go-jose/go-jose/pull/292.

Workarounds

If the application does not require the CBC-HMAC modes for content encryption, and is using github.com/go-jose/go-jose/v4, do not include them in the list of ContentEncryption algorithms passed to ParseEncrypted / ParseEncryptedJSON / ParseEncryptedCompact.

Impact

Denial of service vulnerability. Any application which decrypts untrusted ciphertexts with the indicated algorithms is affected.

Acknowledgements

Thanks to Joshua Rogers of AISLE Research for reporting this problem.

Affected product:

GoogleCloudPlatform/opentelemetry-operations-go/exporter/metric , Grafana , Loki , MinIO , argocd , containerd/containerd , containerd/imgcrypt , containers/ocicrypt , coreos/go-oidc , etcd-io/etcd/api , etcd-io/etcd/client , go-jose/go-jose , google/s2a-go , googleapis/gax-go , googleapis/go-genproto , googleapis/go-genproto/googleapis/bytestream , googleapis/google-api-go-client , googleapis/google-cloud-go , googleapis/google-cloud-go/auth , googleapis/google-cloud-go/auth/oauth2adapt , googleapis/google-cloud-go/iam , googleapis/google-cloud-go/monitoring , googleapis/google-cloud-go/storage , grafana/authlib , grafana/dataplane/examples , grafana/dataplane/sdata , grafana/grafana-aws-sdk , grafana/grafana-azure-sdk-go , grafana/grafana-google-sdk-go , grafana/grafana-plugin-sdk-go , grafana/grafana/pkg/aggregator , grafana/grafana/pkg/apimachinery , grafana/grafana/pkg/apiserver , grafana/grafana/pkg/storage/unified/apistore , grafana/grafana/pkg/storage/unified/resource , grafana/sqlds , grpc/grpc-go , hashicorp/consul , hashicorp/vault-plugin-auth-alicloud , hashicorp/vault/api , hashicorp/vault/api/auth/gcp , heroku/x , influxdata/telegraf , minio/colorjson , minio/pkg , open-telemetry/opentelemetry-go-contrib/instrumentation/google.golang.org/grpc/otelgrpc , prometheus/prom2json , prometheus/prometheus , spiffe/go-spiffe , testcontainers/testcontainers-go

Affected packages:

github.com/go-jose/go-jose @ 3.0.3 (+78 more)