CVE-2026-29509 Patool < 4.0.5 Path Traversal via safe_extract() Function

Patool before 4.0.5 contains a path traversal vulnerability in the safeextract function in patoolib/programs/pytarfile.py when running on Python before 3.12, where the iswithindirectory helper uses os.path.commonprefix for character-level string comparison instead of path-level comparison, allowi...

Incus has an arbitrary file write on its client due to trusted image hash

Summary An arbitrary file write exists in the Incus client when a malicious image server returns a crafted Incus-Image-Hash header. This can lead to arbitrary command execution as root on the server. Details - cmd/incusd/images.go:611-684 handles source.type=url by HEADing the user-supplied URL,...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation via the imageDownload process. An attacker can overwrite arbitrary files on the host system and potentially execute arbitrary commands as root by supplying a crafted Incus-Image-Hash header containing directory...

GHSA-F6M5-XW2G-XC4X Incus has an arbitrary file write on its client due to trusted image hash

Summary An arbitrary file write exists in the Incus client when a malicious image server returns a crafted Incus-Image-Hash header. This can lead to arbitrary command execution as root on the server. Details - cmd/incusd/images.go:611-684 handles source.type=url by HEADing the user-supplied URL,...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation via improper validation of the compressionalgorithm parameter. An attacker can achieve arbitrary file write and potentially execute arbitrary commands by injecting additional arguments into the compression...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation via improper validation of the compressionalgorithm parameter. An attacker can achieve arbitrary file write and potentially execute arbitrary commands by injecting additional arguments into the compression...

Improper Input Validation

Overview Affected versions of this package are vulnerable to Improper Input Validation via improper validation of the compressionalgorithm parameter. An attacker can achieve arbitrary file write and potentially execute arbitrary commands by injecting additional arguments into the compression...

Incus has an argument injection in backup compression algorithm leading to AFW and ACE

Summary Improper validation of user-provided backup compression algorithm leads to argument injection in the constructed command line. This leads to an arbitrary file write on the host, possibly leading to arbitrary command execution. Details Incus validates compressionalgorithm by parsing it int...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path via unsanitized handling of the uploadId parameter in the multipart upload process. An attacker can create arbitrary files on the host system, potentially leading to arbitrary command execution, by...

GHSA-CCJC-4QC3-JXQC Incus has an arbitrary file write via path traversal in S3 multipart upload

Summary The S3 protocol upload endpoint is vulnerable to path traversal and allows creation of arbitrary files on the host. This behavior could lead to arbitrary command execution. In internal/server/storage/s3/local/multipart.go, user-controlled upload ID is appended to the uploads directory...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path via unsanitized handling of the uploadId parameter in the multipart upload process. An attacker can create arbitrary files on the host system, potentially leading to arbitrary command execution, by...

Incus has an arbitrary file write via path traversal in S3 multipart upload

Summary The S3 protocol upload endpoint is vulnerable to path traversal and allows creation of arbitrary files on the host. This behavior could lead to arbitrary command execution. In internal/server/storage/s3/local/multipart.go, user-controlled upload ID is appended to the uploads directory...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path via unsanitized handling of the uploadId parameter in the multipart upload process. An attacker can create arbitrary files on the host system, potentially leading to arbitrary command execution, by...

GHSA-VXP5-584Q-C479 Incus has arbitrary file read+write on host via templates/ symlink in malicious image

Summary A specially crafted image or instance backup can be used to read or create/write arbitrary files on the host; possibly leading to arbitrary command execution. Details For container images, internal/server/storage/utils.go calls archive.UnpackimageFile, destPath, .... The tar extraction pa...

GHSA-JMR9-QJV8-65GV extract-zip unvalidated symlink path traversal

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory...

extract-zip unvalidated symlink path traversal

extract-zip does not validate symlink targets when extracting zip archives. When processing a malicious zip file containing a symlink with a relative path like '../../../../etc/passwd', extract-zip will extract the symlink without validation, allowing it to point outside the extraction directory...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path through the record-output process. An attacker can create or overwrite files on the host system by exploiting a crafted symlink in a container image, which can lead to arbitrary command execution...

GHSA-73HR-M85F-64V9 Incus has an arbitrary file write on host via `exec-output` symlink in crafted image

Summary The record-output parameter of the /instances/$name/exec endpoint stores the output of the command in the exec-output directory of the instance. If exec-output is a symlink, file named execUUID.stdout and execUUID.stderr can be written to an arbitrary location where the .stdout file will...

External Control of File Name or Path

Overview Affected versions of this package are vulnerable to External Control of File Name or Path through the record-output process. An attacker can create or overwrite files on the host system by exploiting a crafted symlink in a container image, which can lead to arbitrary command execution...

Incus has an arbitrary file read+write on host via rootfs/ symlink in malicious image

Summary A specially crafted image can be used to read or create/write arbitrary files on the host; possibly leading to arbitrary command execution. Details Incus validates an image as soon as it sees a normal metadata.yaml and a rootfs/ entry, but full extraction can later process a duplicate...