CVE-2026-26209 cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

ai-box-lib (>=0.1.0 <=0.2.1), aligned-py (>=0.1.0 <=0.2.0a0) +80 more potentially affected by CVE-2026-26209 via cbor2 (>=5.0.1 <=5.8.0)

cbor2 PYPI version =5.0.1, =0.1.0, =0.1.0, =0.13.0, =0.5.5.post5, =0.5.5.post4, =0.2.0, =0.10.6, =0.7.1a0, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.0.5 and more Source cves: CVE-2026-26209 Source advisory: SNYK:PYTHON-CBOR2-15762225...

CVE-2026-26209

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

CVE-2026-26209 cbor2 has a Denial of Service via Uncontrolled Recursion in cbor2.loads

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Versions prior to 5.9.0 are vulnerable to a Denial of Service DoS attack caused by uncontrolled recursion when decoding deeply nested CBOR structures. This vulnerability affects both the...

cbor2 安全漏洞

cbor2 is a binary object representation serialization format encoding and decoding library developed by Alex Grönholm as an individual developer. Versions of cbor2 prior to 5.9.0 contained security vulnerabilities. These vulnerabilities stemmed from uncontrolled recursion when decoding deeply...

Security update for python-cbor2 (moderate)

openSUSE Security Update: Security update for python-cbor2 Announcement ID: openSUSE-SU-2026:0009-1 Rating: moderate References: 1255783 Cross-References: CVE-2025-68131 CVSS scores: CVE-2025-68131 SUSE: 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N Affected Products: openSU...

OPENSUSE-SU-2026:10014-1 python311-cbor2-5.8.0-2.1 on GA media

These are all security issues fixed in the python311-cbor2-5.8.0-2.1 package on the GA media of openSUSE Tumbleweed...

CVE-2025-68131

A flaw was found in cbor2. When a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory. This allows an attacker-controlled message to read sensitive data from previously decoded messages if the decoder is reused across trust...

ai-box-lib (>=0.1.0 <=0.2.1), aligned-py (>=0.1.0 <=0.2.0a0) +86 more potentially affected by CVE-2025-68131 via cbor2 (>=4.1.2 <=5.7.1)

cbor2 PYPI version =4.1.2, =0.1.0, =0.1.0, =0.13.0, =0.5.5.post5, =0.5.5.post4, =0.2.0, =0.10.6, =0.7.1a0, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.0.5 and more Source cves: CVE-2025-68131 Source advisory: OSV:GHSA-WCJ4-JW5J-44WH...

EUVD-2025-205866

CBORDecoder reuse can leak shareable values across decode calls...

Improper Removal of Sensitive Information Before Storage or Transfer

Overview cbor2 is a CBOR deserializer with extensive tag support Affected versions of this package are vulnerable to Improper Removal of Sensitive Information Before Storage or Transfer in the CBORDecoder instance. An attacker can access data from previously decoded messages with a message that...

ai-box-lib (>=0.1.0 <=0.2.1), aligned-py (>=0.1.0 <=0.2.0a0) +78 more potentially affected by CVE-2025-68131 via cbor2 (>=5.0.1 <=5.7.1)

cbor2 PYPI version =5.0.1, =0.1.0, =0.1.0, =0.13.0, =0.5.5.post5, =0.5.5.post4, =0.2.0, =0.10.6, =0.7.1a0, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.0.5 and more Source cves: CVE-2025-68131 Source advisory: SNYK:PYTHON-CBOR2-14742478...

ai-box-lib (>=0.1.0 <=0.2.1), aligned-py (>=0.1.0 <=0.2.0a0) +86 more potentially affected by CVE-2025-68131 via cbor2 (>=4.1.2 <=5.7.1)

cbor2 PYPI version =4.1.2, =0.1.0, =0.1.0, =0.13.0, =0.5.5.post5, =0.5.5.post4, =0.2.0, =0.10.6, =0.7.1a0, =0.1.0, =2.0.1, =1.0.0, =0.0.1, =0.0.5 and more Source cves: CVE-2025-68131 Source advisory: OSV:PYSEC-2025-90...

PYSEC-2025-90

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

DEBIAN-CVE-2025-68131

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

PYSEC-2025-90

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

UBUNTU-CVE-2025-68131

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

CVE-2025-68131

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

CVE-2025-68131 CBORDecoder reuse can leak shareable values across decode calls

cbor2 provides encoding and decoding for the Concise Binary Object Representation CBOR serialization format. Starting in version 3.0.0 and prior to version 5.8.0, whhen a CBORDecoder instance is reused across multiple decode operations, values marked with the shareable tag 28 persist in memory an...

CVE-2025-68131

CVE-2025-68131 (cbor2) affects the cbor2 library’s CBORDecoder when reusing a decoder across trust boundaries. Versions 3.0.0–before 5.8.0 may retain shareable-tag (28) values in memory, allowing an attacker-controlled message to read data from earlier decoded messages via the sharedref tag (29)....