Fixed (SQL injection via E'...' backslash breakout). (CVE-2026-17543)

Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2. before 8.2.33, from 8.3. before 8.3.33, from 8.4. before 8.4.24, and from 8.5. before 8.5.9.

Upgrade libgd. (CVE-2026-9672)

Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4. before 8.4.24 and from 8.5. before 8.5.9.

Fixed bug (Memory corruption (zendmmheap corrupted) in opensslencrypt with AES-WRAP-PAD). (CVE-2026-14355)

Simple Fields 0.2 through 0.3.5 WordPress Plugin contains a local file inclusion vulnerability that allows unauthenticated attackers to read arbitrary files by injecting null bytes into the wpabspath parameter on PHP versions before 5.3.4. Attackers can supply malicious wpabspath values to simplefields.php to include files like /etc/passwd or inject PHP code into Apache logs for remote code execution when allowurlinclude is enabled.

In PHP versions 8.4. before 8.4.21 and 8.5. before 8.5.6, DOMNode::C14N() method may process the XML data incorrectly, causing a circular linked list in the data structure representing the XML document. This may cause subsequent processing of the XML document to enter infinite loop, causing denial of service in the processing application.

In PHP versions 8.4. before 8.4.21 and 8.5. before 8.5.6, when an encoding name containing an embedded NUL byte is passed to mbconvertencoding() or related mbstring functions, the code incorrectly assumes that when strncasecmp() returns 0 it means the strings have the same length. This can lead to out-of-bounds read of global memory, potentially causing a crash or information disclosure or crash. Affected functions include mbconvertencoding(), mbdetectencoding(), mbconvertvariables(), and mbdetectorder(), as well as the mbstring.detectorder and mbstring.httpoutput INI settings.

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, when a SOAP server has a typemap configured, the decoding process contains a mistake which checks the wrong variable in case of missing value element. This leads to dereferences a NULL pointer, causing a segmentation fault. This allows a remote unauthenticated attacker to crash the PHP SOAP server process, resulting in denial of service.

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, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.

In PHP versions 8.2. before 8.2.31, 8.3. before 8.3.31, 8.4. before 8.4.21, 8.5. before 8.5.6, due to improper sanitation of user data, it allows an attacker to compose an URL, which will cause the target to execute arbitrary JavaScript code (XSS) on the target's machine when the target is viewing the PHP-FPM status page.

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, the metaphone() function in ext/standard/metaphone.c uses a signed int variable to track the current position within the input string. If a string longer than 2,147,483,647 bytes is passed, a signed integer overflow occurs, resulting in undefined behavior. This can lead to an out-of-bounds read, causing a segmentation fault or access to unrelated memory, and may affect the availability of the PHP process.

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 user-controlled input can influence the encoding passed to mbregexencoding().

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, when SoapServer is configured with SOAPPERSISTENCESESSION, the handler object is persisted across requests via session storage. However, in the case SOAP requests results in an error, the persistance is handled incorrectly, resulting in freeing the object while keeping a pointer to it, which may lead to use-after-free. This may lead to memory corruption, information disclosure, or process crashes, with confidentiality, integrity, and availability impact on the vulnerable system.

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, the PDO Firebird driver improperly handles NUL bytes when preparing SQL queries. During token-by-token query construction, a string token containing a NUL byte is copied via strncat(), which stops at the NUL byte, dropping the closing quote and causing subsequent SQL tokens to be interpreted as part of the string. This allows SQL injection when attacker-controlled values are quoted via PDO::quote() and embedded in SQL statements.

Fixed CVE-2026-44928 (In uriparser before 1.0.2, the function family EqualsUri can misclassify two unequal URIs as equal). (CVE-2026-44928)

Fixed CVE-2026-44927 (In uriparser before 1.0.2, there is pointer difference truncation to int in various places). (CVE-2026-44927)

Fixed (Use-after-free after header parsing failure with SOAPPERSISTENCESESSION). (CVE-2026-7261)

Fixed (Consistently pass unsigned char to ctype.h functions). (CVE-2026-7258)

Fixed (Broken Apache map value NULL check). (CVE-2026-7262)

Fixed (SQL injection via NUL bytes in quoted strings). (CVE-2025-14179)

Fixed (XSS within status endpoint). (CVE-2026-6735)

Fixed (Stale SOAPGLOBAL(refmap) pointer with Apache Map). (CVE-2026-6722)

Fixed (Signed integer overflow of char array offset). (CVE-2026-7568)

Fixed (Null pointer dereference in phpmbcheckencoding() via mberegsearchinit()). (CVE-2026-7259)

Fixed and (Dom\XMLDocument::C14N() emits duplicate xmlns declarations after setAttributeNS()). (CVE-2026-7263)

Fixed (Out-of-bounds access in mbflname2encodingex()). (CVE-2026-6104)

Fixed bug (Segfault in filegetcontents w/ a https URL and a proxy set). (CVE-2026-12184)

Fixed CVE-2026-42371 (uriparser before 1.0.1 has numeric truncation in text range comparison). (CVE-2026-42371)

In PHP versions:8.1. before 8.1.34, 8.2. before 8.2.30, 8.3. before 8.3.29, 8.4. before 8.4.16, 8.5. before 8.5.1, a heap buffer overflow occurs in arraymerge() when the total element count of packed arrays exceeds 32-bit limits or HTMAXSIZE, due to an integer overflow in the precomputation of element counts using zendhashnumelements(). This may lead to memory corruption or crashes and affect the integrity and availability of the target server.