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CVE-2024-49580: In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclo

31
Routine
MEDIUM 5.3REMOTEUPGRADE

CVE-2024-49580 is a medium-severity flaw (CVSS 5.3) affecting ktor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure

Why this priority

  • Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score5.3 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance0.4% (top 71%)
CISA exploited listNo
WeaknessCWE-524
Published2024-10-17
Last modified2026-06-17
Publisher (CNA): JetBrains s.r.o. · Vendor: jetbrains

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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

jetbrains ktor UPGRADE
Affected: < 3.0.0
Fixed in: 3.0.0
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy ktor || rpm -q ktor || ktor --version
2. UPGRADE to 3.0.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade ktor
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade ktor
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-2024-49580?

ktor: upgrade to 3.0.0. Exact commands for each OS are on this page.

Is CVE-2024-49580 being exploited?

CVE-2024-49580 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-2024-49580 affect?

CVE-2024-49580 affects ktor. Severity is medium (CVSS 5.3). In JetBrains Ktor before 2.3.13 improper caching in HttpCache Plugin could lead to response information disclosure

How urgent is CVE-2024-49580?

Priority 31/100. Remotely exploitable, no login, no user action

Related CVEs

References

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