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🛡️ CVE-2026-5545 on Debian 11 (Root.io) — curl

🟡 CVSS 5.0 — Medium ✅ No Known Exploit OSV
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-5545 in curl - Patched by Root

Root has patched CVE-2026-5545 in the curl package for Root:Debian:11. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-5545 as tracked by Debian 11 (Root.io), for the package curl. The fix is available in version 7.74.0-1.3+deb11u16.root.io.17; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: Low — an ordinary user account is enough.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: None.

Weakness class

ROOT-OS-DEBIAN-11-CVE-2026-5545 is classified as CWE-613: Insufficient Session Expiration. Sessions stay valid longer than they should, so an old identifier still grants access.

Affected software

ROOT-OS-DEBIAN-11-CVE-2026-5545 is recorded against 2 packages.

  • curl (fixed in 7.74.0-1.3+deb11u16.root.io.17)
  • rootio-curl (fixed in 7.74.0-1.3+deb11u16.root.io.17)

Timeline and source

Published on 20 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Other advisories for this package

curl has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-613: Insufficient Session Expiration) in other software:

Details

Severity MEDIUM
CVSS Score 5.0
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-20
Updated 2026-08-20
Modified 2026-08-20
Fix URL N/A

Affected Packages

Software From version Fixed in
curl — 7.74.0-1.3+deb11u16.root.io.17
rootio-curl — 7.74.0-1.3+deb11u16.root.io.17

References

N/A

Vulnerability Monitoring

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ROOT-OS-DEBIAN-11-CVE-2026-5545 is rated CVSS 5.0 Medium. BotEraser monitors your WordPress installation and notifies you when software you use appears in our vulnerability database.

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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