curl: Function `do_pubkey()` can have out-of-bound read issue

Summary A 1-byte out-of-bounds heap read in dopubkey in lib/vtls/x509asn1.c. When parsing an RSA public key with a zero-length or all-zero modulus, the loop dereferences a pointer before checking bounds. Requires a non-OpenSSL TLS backend e.g., Mbed/Gnu. A certificate chain verification can trigg...

Linux Distros Unpatched Vulnerability : CVE-2026-4159

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte...

Out-of-bounds Read

Overview Affected versions of this package are vulnerable to Out-of-bounds Read in the wcPKCS7DecodeEnvelopedData function when processing a crafted CMS EnvelopedData message containing zero-length encrypted content. An attacker can cause a 1-byte out-of-bounds heap read by supplying such a...

CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

DEBIAN-CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

UBUNTU-CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159

CVE-2026-4159: A 1-byte out-of-bounds heap read in wolfSSL’s wc_PKCS7_DecodeEnvelopedData can be triggered by a crafted CMS EnvelopedData message with zero-length encrypted content. Affected software: wolfSSL 5.8.4 and earlier; root cause is a 1-byte OOB read during enveloped data decoding. Impac...

CVE-2026-4159 wc_PKCS7_DecodeEnvelopedData 1 byte out-of-bounds read

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159 wc_PKCS7_DecodeEnvelopedData 1 byte out-of-bounds read

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159 wc_PKCS7_DecodeEnvelopedData 1 byte out-of-bounds read

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

CVE-2026-4159

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

EUVD-2026-13105

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...

CVE-2026-2369

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...

UBUNTU-CVE-2026-2369

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...

CVE-2026-2369

A vulnerability CVE-2026-2369 exists in libsoup where an integer underflow occurs when processing content with a zero-length resource, causing a buffer overread. Connected sources indicate this affects libsoup versions older than 3.4.4-14, with a patched release available (3.4.4-14). Potential im...

CVE-2026-2369

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...

CVE-2026-2369 Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...

CVE-2026-2369 Libsoup: libsoup: buffer overread due to integer underflow when handling zero-length resources

A flaw was found in libsoup. An integer underflow vulnerability occurs when processing content with a zero-length resource, leading to a buffer overread. This can allow an attacker to potentially access sensitive information or cause an application level denial of service...