php: NULL pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

A flaw was found in PHP. When an attacker input can influence the encoding passed to mbregexencoding and the application subsequently uses mbregex search APIs, a NULL pointer dereference can occur due to a mismatch between the Oniguruma and mbfl encoding support. This issue can cause a crash in t...

CVE-2026-7259

A flaw was found in PHP. When an attacker input can influence the encoding passed to mbregexencoding and the application subsequently uses mbregex search APIs, a NULL pointer dereference can occur due to a mismatch between the Oniguruma and mbfl encoding support. This issue can cause a crash in t...

Astra Linux - уязвимость в libonig

A NULL pointer dereference in the matchat function in regexec.c in Oniguruma 6.9.2 allows attackers to potentially cause a denial of service by providing a crafted regular expression. Oniguruma vulnerabilities often affect Ruby, as well as common optional libraries used in PHP and Rust...

Astra Linux - уязвимость в libonig

A use-after-free in the onignewdeluxe function in regext.c in Oniguruma 6.9.2 allows attackers to potentially cause information disclosure, denial of service, or possibly code execution by providing a crafted regular expression. The attacker provides a pair of a regular expression pattern and a...

Astra Linux - уязвимость в libonig

A issue was discovered in Oniguruma 6.x before 6.9.4rc2. In the function gb18030mbcenclen in the file gb18030.c, a UChar pointer was dereferenced without checking whether it pointed to the end of the matched string. This resulted in a buffer overflow...

Astra Linux - уязвимость в libonig

A issue was discovered in Oniguruma 6.x before 6.9.4rc2. In the function fetchintervalquantifier formerly known as fetchrangequantifier in regparse.c, PFETCH is called without checking PEND. This leads to a buffer overflow issue based on the heap mechanism...

Astra Linux - уязвимость в libonig

Oniguruma, as used in PHP 7.3.x and other products, has a heap-based buffer over-read issue in the strlowercasematch function in regexec.c...

OESA-2026-2341 php security update

PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is...

BIT-PHP-MIN-2026-7259 Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

BIT-PHP-2026-7259 Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

BIT-LIBPHP-2026-7259 Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

PT-2026-40307

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

PT-2026-40282

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

SUSE CVE-2026-7259

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

CVE-2026-7259

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

CVE-2026-7259

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

EUVD-2026-28969

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

CVE-2026-7259

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

CVE-2026-7259 Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init()

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...

CVE-2026-7259

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, and 8.5. before 8.5.6, a mismatch between encoding lists in Oniguruma and mbfl leads to a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when...