Uclouvain Openjpeg vulnerabilities

CVE-2026-6192 [MEDIUM] CWE-189 CVE-2026-6192: A vulnerability was identified in uclouvain openjpeg up to 2.5.4. This impacts the function opj_pi_i A vulnerability was identified in uclouvain openjpeg up to 2.5.4. This impacts the function opj_pi_initialise_encode in the library src/lib/openjp2/pi.c. The manipulation leads to integer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is 839936aa33eb8899bbbd80fda02796b

CVE-2025-50952 [MEDIUM] CWE-476 CVE-2025-50952: openjpeg v 2.5.0 was discovered to contain a NULL pointer dereference via the component /openjp2/dwt openjpeg v 2.5.0 was discovered to contain a NULL pointer dereference via the component /openjp2/dwt.c.

CVE-2025-54874 [MEDIUM] CWE-457 CVE-2025-54874: OpenJPEG is an open-source JPEG 2000 codec. In OpenJPEG from 2.5.1 through 2.5.3, a call to opj_jp2_ OpenJPEG is an open-source JPEG 2000 codec. In OpenJPEG from 2.5.1 through 2.5.3, a call to opj_jp2_read_header may lead to OOB heap memory write when the data stream p_stream is too short and p_image is not initialized.

CVE-2023-39329 [MEDIUM] CWE-400 CVE-2023-39329: A flaw was found in OpenJPEG. A resource exhaustion can occur in the opj_t1_decode_cblks function in A flaw was found in OpenJPEG. A resource exhaustion can occur in the opj_t1_decode_cblks function in tcd.c through a crafted image file, causing a denial of service.

CVE-2023-39327 [MEDIUM] CWE-400 CVE-2023-39327: A flaw was found in OpenJPEG. Maliciously constructed pictures can cause the program to enter a larg A flaw was found in OpenJPEG. Maliciously constructed pictures can cause the program to enter a large loop and continuously print warning messages on the terminal.

CVE-2023-39328 [MEDIUM] CVE-2023-39328: A vulnerability was found in OpenJPEG similar to CVE-2019-6988. This flaw allows an attacker to bypa A vulnerability was found in OpenJPEG similar to CVE-2019-6988. This flaw allows an attacker to bypass existing protections and cause an application crash through a maliciously crafted file.

CVE-2022-1122 [MEDIUM] CWE-665 CVE-2022-1122: A flaw was found in the opj2_decompress program in openjpeg2 2.4.0 in the way it handles an input di A flaw was found in the opj2_decompress program in openjpeg2 2.4.0 in the way it handles an input directory with a large number of files. When it fails to allocate a buffer to store the filenames of the input directory, it calls free() on an uninitialized pointer, leading to a segmentation fault and a denial of service.

CVE-2021-3575 [HIGH] CWE-787 CVE-2021-3575: A heap-based buffer overflow was found in openjpeg in color.c:379:42 in sycc420_to_rgb when decompre A heap-based buffer overflow was found in openjpeg in color.c:379:42 in sycc420_to_rgb when decompressing a crafted .j2k file. An attacker could use this to execute arbitrary code with the permissions of the application compiled against openjpeg.

CVE-2020-27823 [HIGH] CWE-20 CVE-2020-27823: A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y o A flaw was found in OpenJPEG’s encoder. This flaw allows an attacker to pass specially crafted x,y offset input to OpenJPEG to use during encoding. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVE-2020-27824 [MEDIUM] CWE-20 CVE-2020-27824: A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.

CVE-2021-29338 [MEDIUM] CWE-190 CVE-2021-29338: Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Deni Integer Overflow in OpenJPEG v2.4.0 allows remote attackers to crash the application, causing a Denial of Service (DoS). This occurs when the attacker uses the command line option "-ImgDir" on a directory that contains 1048576 files.

CVE-2020-27814 [HIGH] CWE-122 CVE-2020-27814: A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker A heap-buffer overflow was found in the way openjpeg2 handled certain PNG format files. An attacker could use this flaw to cause an application crash or in some cases execute arbitrary code with the permission of the user running such an application.

CVE-2020-27844 [HIGH] CWE-20 CVE-2020-27844: A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an A flaw was found in openjpeg's src/lib/openjp2/t2.c in versions prior to 2.4.0. This flaw allows an attacker to provide crafted input to openjpeg during conversion and encoding, causing an out-of-bounds write. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVE-2020-27842 [MEDIUM] CWE-125 CVE-2020-27842: There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provi There's a flaw in openjpeg's t2 encoder in versions prior to 2.4.0. An attacker who is able to provide crafted input to be processed by openjpeg could cause a null pointer dereference. The highest impact of this flaw is to application availability.

CVE-2020-27841 [MEDIUM] CWE-122 CVE-2020-27841: There's a flaw in openjpeg in versions prior to 2.4.0 in src/lib/openjp2/pi.c. When an attacker is a There's a flaw in openjpeg in versions prior to 2.4.0 in src/lib/openjp2/pi.c. When an attacker is able to provide crafted input to be processed by the openjpeg encoder, this could cause an out-of-bounds read. The greatest impact from this flaw is to application availability.

CVE-2020-27843 [MEDIUM] CWE-125 CVE-2020-27843: A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide spe A flaw was found in OpenJPEG in versions prior to 2.4.0. This flaw allows an attacker to provide specially crafted input to the conversion or encoding functionality, causing an out-of-bounds read. The highest threat from this vulnerability is system availability.

CVE-2020-27845 [MEDIUM] CWE-125 CVE-2020-27845: There's a flaw in src/lib/openjp2/pi.c of openjpeg in versions prior to 2.4.0. If an attacker is abl There's a flaw in src/lib/openjp2/pi.c of openjpeg in versions prior to 2.4.0. If an attacker is able to provide untrusted input to openjpeg's conversion/encoding functionality, they could cause an out-of-bounds read. The highest impact of this flaw is to application availability.

CVE-2020-15389 [MEDIUM] CWE-416 CVE-2020-15389: jp2/opj_decompress.c in OpenJPEG through 2.3.1 has a use-after-free that can be triggered if there i jp2/opj_decompress.c in OpenJPEG through 2.3.1 has a use-after-free that can be triggered if there is a mix of valid and invalid files in a directory operated on by the decompressor. Triggering a double-free may also be possible. This is related to calling opj_image_destroy twice.

CVE-2016-3182 [MEDIUM] CWE-119 CVE-2016-3182: The color_esycc_to_rgb function in bin/common/color.c in OpenJPEG before 2.1.1 allows attackers to c The color_esycc_to_rgb function in bin/common/color.c in OpenJPEG before 2.1.1 allows attackers to cause a denial of service (memory corruption) via a crafted jpeg 2000 file.

CVE-2020-8112 [HIGH] CVE-2020-8112: opj_t1_clbl_decode_processor in openjp2/t1.c in OpenJPEG 2.3.1 through 2020-01-28 has a heap-based b opj_t1_clbl_decode_processor in openjp2/t1.c in OpenJPEG 2.3.1 through 2020-01-28 has a heap-based buffer overflow in the qmfbid==1 case, a different issue than CVE-2020-6851.