Backup-utility cannot pack up backup tar since version v8.6.2

Summary

Backup-utility cannot pack up backup tar and thus isn't able to complete backup operation since version v8.6.2

Steps to reproduce

Either via cron executed command or just through kubectl exec toolbox -it -- backup-utility

Configuration used

global:
  hosts:
    domain: "DOMAIN"
    https: true
    gitlab:
      name: "GITLAB"
    registry:
      name: "REGISTRY"
    pages:
      name: "PAGES"
    kas:
      name: "KAS"
  ingress:
    tls:
      secretName: SECRET
    configureCertmanager: false
    class: nginx
    annotations:
      "cert-manager.io/cluster-issuer": "letsencrypt-prod"
      "kubernetes.io/tls-acme": true
      nginx.ingress.kubernetes.io/proxy-body-size: "0"
  psql:
    host: HOST
    port: PORT
    database: DB
    username: USR
    password:
      useSecret: true
      secret: SECRET
      key: KEY
  redis:
    host: HOST
    auth:
      enabled: true
      secret: SECRET
      key: KEY
  registry:
    bucket: REGISTRY
  gitaly:
    persistence:
      size: 1000Gi
    internal:
      names:
        - default
        - replica1
    logging:
      level: 0
  minio:
    enabled: false
  appConfig:
    gitlab_kas:
      enabled: true
      externalUrl: "wss://KAS/"
    lfs:
      bucket: LFS
      connection:
        provider: gcs
        secret: SECRET
        key: KEY
    artifacts:
      bucket: ARTIFACTS
      connection:
        provider: gcs
        secret: SECRET
        key: KEY
    uploads:
      bucket: UPLOADS
      connection:
        provider: gcs
        secret: SECRET
        key: KEY
    packages:
      bucket: PACKAGES
      connection:
        provider: gcs
        secret: SECRET
        key: KEY
    backups:
      enabled: true
      bucket: BACKUPS
      tmpBucket: TMP
  pages:
    enabled: true
    accessControl: true
    host: PAGES
    artifactsServer: true
    objectStore:
      bucket: PAGES
      connection:
        provider: gcs
        secret: SECRET
        key: KEY
  email:
    from: FROM
    reply_to: TO
  smtp:
    enabled: true
    address: SMTP
    domain: DOMAIN
    user_name: USER
    authentication: login
    password:
      secret: SECRET
      key: KEY
    starttls_auto: true
gitlab:
  gitlab-runner:
    install: false
  nginx-ingress:
    enabled: false
  postgresql:
    install: false
  redis:
    install: false
  prometheus:
    server:
      enabled: false
  certmanager:
    install: false
  certmanager-issuer:
    email: EMAIL
  gitlab:
    migrations:
      enabled: false
    gitaly:
      resources:
        requests:
          cpu: 0.5
          memory: 4Gi
        limits:
          memory: 6Gi
    gitlab-pages:
      ingress:
        annotations:
          "cert-manager.io/cluster-issuer": "letsencrypt-prod"
          "kubernetes.io/tls-acme": true
        tls:
          enabled: true
          secretName: SECRET
    kas:
      ingress:
        annotations:
          "cert-manager.io/cluster-issuer": "letsencrypt-prod"
          "kubernetes.io/tls-acme": true
        tls:
          enabled: true
          secretName: SECRET
    toolbox:
      persistence:
        enabled: true
        size: 1500Gi
      backups:
        cron:
          enabled: true
          timeZone: Europe/Paris
          schedule: 0 1 * * 6
          persistence:
            storageClass: "standard"
            enabled: true
            size: 3000Gi
        objectStorage:
          config:
            secret: SECRET
            key: KEY
            gcpProject: PROJECT
          backend: gcs
    webservice:
      monitoring:
        exporter:
          enabled: true
      replicaCount: 3
      resources:
        requests:
          cpu: 1
          memory: 3Gi
        limits:
          cpu: 1500m
          memory: 4Gi
      ingress:
        tls:
          secretName: SECRET
    minio:
      ingress:
        tls:
          secretName: SECRET
  registry:
    ingress:
      annotations:
        "cert-manager.io/cluster-issuer": "letsencrypt-prod"
        "kubernetes.io/tls-acme": true
        nginx.ingress.kubernetes.io/proxy-body-size: "0"
      tls:
        enabled: true
        secretName: SECRET
    storage:
      secret: SECRET
      key: KEY
      extraKey: KEY

Current behavior

Backup-utility --backup returns an error when trying to archive the backup file: Packing up backup tar module 'OpenSSL.crypto' has no attribute 'sign' command terminated with exit code 1

Expected behavior

The same behavior as version v8.6.1, no error while archiving the backup file and its upload to the backup bucket

Versions

• Chart: v8.6.2 (also not working with v8.7.0)
• Platform:
  • Cloud: GKE
• Kubernetes:
  • Client: v1.30.5-dispatcher
  • Server: v1.30.5-gke.1443001
• Helm:
  • Client: v3.16.1

Relevant logs

Packing up backup tar module 'OpenSSL.crypto' has no attribute 'sign' command terminated with exit code 1

For some reason the pyOpenSSL package version of this bug matches the one of the images with an archiving problem so maybe a dependency of this package might be the cause ?

• registry.gitlab.com/gitlab-org/build/cng/gitlab-toolbox-ee:v17.6.1 : pyOpenSSL 24.2.1 -> working
• registry.gitlab.com/gitlab-org/build/cng/gitlab-toolbox-ee:v17.6.2 & v17.7.0 : pyOpenSSL 24.3.0 -> not working