PatchTheCEVCVE-2026-106115: ImageSharp is a 2D graphics library
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HIGH 7.5REMOTEUPGRADE
CVE-2026-106115 is a high-severity flaw (CVSS 7.5) affecting imagesharp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
ImageSharp is a 2D graphics library. From 2.1.0 until 4.1.2, the TIFF CCITT Group 4 encoder allocates Width times rowsPerStrip bytes even though T6BitCompressor.CompressStrip can emit encoded row data and two 12-bit end-of-facsimile-block codes beyond that capacity. TiffCcittCompressor.WriteCode performs unchecked writes, and a decode-and-re-encode flow can inherit TiffCompression.CcittGroup4Fax and one-bit metadata from attacker-supplied input.
Why this priority
- High severity
- Public exploit reference
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.5 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 73%) |
| CISA exploited list | No |
| Weakness | CWE-787 |
| Published | 2026-10-06 |
| Last modified | 2026-10-24 |
Publisher (CNA): GitHub, Inc. · Vendor: sixlabors
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
sixlabors imagesharp UPGRADE
Affected: >= 2.1.0 and < 3.2.0 · >= 4.0.0 and < 4.1.2
Fixed in: 3.2.0, 4.1.2
Safe to downgrade to: a release before 2.1.0
1. Check installed version
apt-cache policy imagesharp || rpm -q imagesharp || imagesharp --version
2. UPGRADE to 3.2.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade imagesharp
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade imagesharp
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 2.1.0 (Debian / Ubuntu)
apt-cache madison imagesharp
sudo apt install imagesharp=<VERSION_BEFORE_2.1.0>
sudo apt-mark hold imagesharp
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list imagesharp
sudo dnf downgrade imagesharp-<VERSION_BEFORE_2.1.0>
sudo dnf versionlock add imagesharp
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
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.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Related CVEs
- CVE-2026-106110 HIGH 7.5 UPGRADE ImageSharp is a 2D graphics library
- CVE-2026-106111 MEDIUM 5.9 UPGRADE ImageSharp is a 2D graphics library
- CVE-2026-106112 HIGH 7.5 UPGRADE ImageSharp is a 2D graphics library
- CVE-2026-106113 HIGH 7.5 UPGRADE ImageSharp is a 2D graphics library
- CVE-2026-106114 MEDIUM 5.3 UPGRADE ImageSharp is a 2D graphics library