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CVE-2015-4082: attic before 0.15 does not confirm unencrypted backups with the user, which allows remote attackers with read

49
This month
MEDIUM 6.5UPGRADE

CVE-2015-4082 is a medium-severity flaw (CVSS 6.5) affecting attic. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

attic before 0.15 does not confirm unencrypted backups with the user, which allows remote attackers with read and write privileges for the encrypted repository to obtain potentially sensitive information by changing the manifest type byte of the repository to "unencrypted / without key file".

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance2.5% (top 15%)
CISA exploited listNo
WeaknessCWE-264
Published2017-08-18
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: attic project

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

attic project attic UPGRADE
Affected: <= 0.14
Fixed in: newer than 0.14
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy attic || rpm -q attic || attic --version
2. UPGRADE to newer than 0.14 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade attic
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade attic
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-4082?

attic: upgrade to newer than 0.14. Exact commands for each OS are on this page.

Is CVE-2015-4082 being exploited?

CVE-2015-4082 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-4082 affect?

CVE-2015-4082 affects attic. Severity is medium (CVSS 6.5). attic before 0.15 does not confirm unencrypted backups with the user, which allows remote attackers with read and write privileges for the encrypted repository to obtain potentially sensitive information by changing the manifest type byte o

How urgent is CVE-2015-4082?

Priority 49/100. Public exploit reference

References

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