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1261 vulnerabilities by GNU
CVE-2026-16599 (GCVE-0-2026-16599)
Vulnerability from cvelistv5 – Published: 2026-08-25 14:17 – Updated: 2026-08-25 14:51
VLAI
EPSS
VEX
Title
Denial of Service in GNU wget
Summary
GNU wget is vulnerable to denial of service in its FTP OPIE/S-KEY authentication functionality. The server-supplied sequence number from the FTP challenge line is used as an iteration count for an MD5 key-derivation loop without any upper bound validation. A malicious FTP server or a network attacker positioned to intercept FTP traffic can send a crafted OPIE challenge with a sequence number near INT_MAX, causing wget to perform up to approximately 2.1 billion MD5 computations and suspend for some time. The --timeout option does not mitigate this because it applies only to network I/O, not CPU computation.
This issue was fixed in commit e9697d98e7249b0f68a6be040a4f3dcc5bc101fa
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-25 14:38 UTC
CWE
- CWE-606 - Unchecked input for loop condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-16599 | third-party-advisory |
| https://gitlab.com/gnuwget/wget | product |
| https://gitlab.com/gnuwget/wget/-/commit/e9697d98… | patch |
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CVE-2026-77219 (GCVE-0-2026-77219)
Vulnerability from cvelistv5 – Published: 2026-08-21 20:20 – Updated: 2026-08-21 21:42 X_Open Source
VLAI
EPSS
VEX
Title
GNU Emacs < 31.0.91 Heap Over-Read via PBM/PPM/PGM Image Loader
Summary
GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values, the result wraps to a negative number, bypassing the bounds check and causing the pixel reader to access heap memory past the end of the allocated buffer. The over-read contents are interpreted as pixel color values and rendered on screen.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 21:32 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://debbugs.gnu.org/cgi/bugreport.cgi?bug=81344 | issue-tracking |
| https://github.com/emacs-mirror/emacs/releases/ta… | release-notes |
| https://github.com/emacs-mirror/emacs/commit/b07e… | patch |
| https://www.vulncheck.com/advisories/gnu-emacs-he… | third-party-advisory |
Date Public
2026-07-01 00:00
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CVE-2026-66486 (GCVE-0-2026-66486)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:25 – Updated: 2026-08-10 10:35 X_Open Source
VLAI
EPSS
VEX
Title
Improper Output Encoding in GNU cpio
Summary
GNU cpio is vulnerable to improper encoding or escaping of output in its archive member listing functionality. When listing archive members via cpio -it, member names are printed directly to output without quoting or escaping. An attacker can craft a cpio archive containing member names with embedded newline characters or ANSI escape sequences, causing forged listing entries or terminal control sequence injection when the listing is displayed.
This issue has been fixed in commit 2ff9600c9ef32e88759843cdbde74c8db5ae9b30
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 10:34 UTC
CWE
- CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-66484 | third-party-advisory |
| https://git.savannah.gnu.org/cgit/cpio.git | product |
Impacted products
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CVE-2026-66485 (GCVE-0-2026-66485)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:25 – Updated: 2026-08-10 10:56 X_Open Source
VLAI
EPSS
VEX
Title
Uncontrolled Memory Allocation in GNU cpio
Summary
GNU cpio is vulnerable to an uncontrolled memory allocation in the make_path function at src/makepath.c. The function uses alloca to allocate stack memory based on the length of argpath, which is derived from an archive-controlled pathname during extraction. A malicious cpio archive containing a sufficiently long nested pathname causes an unbounded stack allocation, resulting in a stack overflow and crash of the cpio process. An attacker who can supply a crafted cpio archive to a victim who extracts it can cause a denial of service.
This issue has been fixed in commit 3cd514031371d8aeeaf2048aa10103e02831aaa9
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 10:56 UTC
CWE
- CWE-789 - Memory allocation with excessive size value
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-66484 | third-party-advisory |
| https://git.savannah.gnu.org/cgit/cpio.git | product |
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CVE-2026-66484 (GCVE-0-2026-66484)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:25 – Updated: 2026-08-10 10:57 X_Open Source
VLAI
EPSS
VEX
Title
Path Traversal in GNU cpio
Summary
GNU cpio contains a Path Traversal vulnerability in its tar archive extraction functionality. When extracting a tar archive in copy-in mode with the --no-absolute-filenames option, the extracted file name is normalized but the tar hard-link target is passed to the link_to_name function without equivalent sanitization before calling link function. A tar archive provided by an attacker, containing a hard-link entry whose linkname is set to an absolute path outside the extraction directory, can cause cpio to create a hard link to an existing file outside the intended extraction directory, breaking the expected guarantee of --no-absolute-filenames and allowing archive-controlled linkage to external files.
This issue has been fixed in commit e2b9cbdd3354d2b1569b7390d1bc15c1930559ad
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 10:57 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-66484 | third-party-advisory |
| https://git.savannah.gnu.org/cgit/cpio.git | product |
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CVE-2026-71394 (GCVE-0-2026-71394)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:23 – Updated: 2026-08-10 17:49 X_Open Source
VLAI
EPSS
VEX
Title
Heap Use of Uninitialized Memory in GNU Emacs for Android
Summary
GNU Emacs for Android improperly validates the table header input in sfnt_read_table_directory() in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a struct with uninitialized heap memory in the table directory entries. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This leads to the use of uninitialized heap data in subsequent table lookups, potentially resulting in information disclosure, crashes, or arbitrary memory access on 32-bit targets.
This issue is fixed after commit 7621ee1d01229d50e5c0cddea6bf0b01095a62cf
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:49 UTC
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
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CVE-2026-71393 (GCVE-0-2026-71393)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:22 – Updated: 2026-08-10 17:50 X_Open Source
VLAI
EPSS
VEX
Title
Heap Buffer Overflow in GNU Emacs for Android
Summary
GNU Emacs for Android is vulnerable to an integer overflow in sfnt_read_name_table() in src/sfnt.c. The function computes an allocation size using a 32-bit length value from a TrueType font file without overflow checking. On 32-bit targets, a crafted font causes the calculation to wrap, resulting in an undersized heap allocation. A subsequent read() call writes beyond the buffer, causing a heap buffer overflow. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This can lead to heap memory corruption and potential code execution.
This issue was fixed in commit d51a4722316efe0960994d371e1859099894d1ca
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:50 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
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|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
| https://git.savannah.gnu.org/cgit/emacs.git/commi… | patch |
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CVE-2026-71392 (GCVE-0-2026-71392)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:22 – Updated: 2026-08-10 17:48 X_Open Source
VLAI
EPSS
VEX
Title
Integer Overflow in GNU Emacs for Android
Summary
GNU Emacs for Android is vulnerable to an integer overflow in the sfnt_read_cmap_format_12() function in src/sfnt.c. When processing a crafted TrueType font file, an unguarded addition in the xmalloc allocation call wraps around on 32-bit builds, causing a heap buffer overflow write. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This results in heap memory corruption that can lead to code execution.
This issue was fixed in commit c4e20777c26548722a37b03db93243e83a0d6188
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:48 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
| https://git.savannah.gnu.org/cgit/emacs.git/commi… | patch |
Impacted products
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CVE-2026-71391 (GCVE-0-2026-71391)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:22 – Updated: 2026-08-10 17:48 X_Open Source
VLAI
EPSS
VEX
Title
Off-by-One Error in GNU Emacs for Android
Summary
GNU Emacs for Android contains an off-by-one error in the gvar table parser in src/sfnt.c. The shared-coordinate index boundary check in sfnt_vary_simple_glyph() and sfnt_vary_compound_glyph() uses a strict greater-than comparison instead of greater-than-or-equal, allowing a crafted TrueType variable font to bypass the check and trigger a heap-based out-of-bounds read via memcpy. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This exposes heap memory contents which can be later used to defeat ASLR.
This issue was fixed in commit 95ab9ef627b212d74d321c5bbb5b56a1be7b9fbe
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-10 17:48 UTC
CWE
- CWE-193 - Off-by-one Error
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
| https://git.savannah.gnu.org/cgit/emacs.git/commi… |
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CVE-2026-18477 (GCVE-0-2026-18477)
Vulnerability from cvelistv5 – Published: 2026-08-03 15:34 – Updated: 2026-08-21 12:13
VLAI
EPSS
VEX
Title
Tar: tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape
Summary
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 16:25 UTC
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:49361 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-18477 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509735 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.35-9.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-07-31 00:00
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CVE-2026-18508 (GCVE-0-2026-18508)
Vulnerability from cvelistv5 – Published: 2026-08-03 14:51 – Updated: 2026-08-21 12:13
VLAI
EPSS
VEX
Title
Tar: tar: --one-top-level hardlink targets not confined to top-level directory enabling arbitrary file overwrite
Summary
A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted archive can create hardlinks that escape the intended boundary and, when combined with a preexisting symbolic link under the working directory, may allow writing outside that boundary during a single extraction.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 16:02 UTC
CWE
- CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:50807 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-18508 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2509843 | issue-trackingx_refsource_REDHAT |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Hardened Images |
Unaffected:
1.35-9.2.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-07-31 00:00
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CVE-2026-56390 (GCVE-0-2026-56390)
Vulnerability from cvelistv5 – Published: 2026-07-29 09:40 – Updated: 2026-07-29 12:15 X_Open Source
VLAI
EPSS
VEX
Title
Arbitrary Output Location Change in GNU Bison
Summary
GNU Bison improperly handles grammar‑defined output paths. Grammar directives such as %output and %header allow specifying file paths, which are accepted without restriction and override caller‑supplied output options.
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 12:14 UTC
CWE
- CWE-73 - External Control of File Name or Path
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/07/CVE-2026-56389 | third-party-advisory |
| https://cgit.git.savannah.gnu.org/cgit/bison.git/ | patch |
| https://cgit.git.savannah.gnu.org/cgit/bison.git/… | patch |
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CVE-2026-56389 (GCVE-0-2026-56389)
Vulnerability from cvelistv5 – Published: 2026-07-29 09:39 – Updated: 2026-07-29 12:21 X_Open Source
VLAI
EPSS
VEX
Title
Arbitrary Command Execution in GNU Bison
Summary
GNU Bison allows for an execution of an arbitrary program during HTML report generation due to improper handling of grammar-defined configuration variables. A grammar file can override the executable used for the XML‑to‑HTML transformation step via %define tool.xsltproc, which is accepted without restriction and passed directly to execvp().
When running bison --html on a attacker-provided grammar, this behavior allows execution of an arbitrary program with the privileges of the Bison process.
Maintainers of this project were notified about this vulnerability, and fixed the issue in commit 3169c1e7a2c6acc4c59dfcf8b089896d6881925b. However, they did not provide vulnerable version range. Version 3.8.2 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 12:20 UTC
CWE
- CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
3 references
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|---|---|
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| https://cgit.git.savannah.gnu.org/cgit/bison.git/ | product |
| https://cgit.git.savannah.gnu.org/cgit/bison.git/… | patch |
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CVE-2026-56392 (GCVE-0-2026-56392)
Vulnerability from cvelistv5 – Published: 2026-07-24 07:44 – Updated: 2026-07-24 12:32 X_Open Source
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in GNU coreutils
Summary
GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer allocation when processing large tab stop (-t) values. The multiplication used to calculate the allocation size can wrap around, resulting in an undersized buffer.
When processing crafted input, subsequent writes exceed the allocated memory, leading to an out‑of‑bounds heap write.
When running GNU coreutils unexpand with attacker-provided large tab stop (-t) arguments, this behavior leads to a crash and potentially achieve a heap write primitive depending on memory layout.
This issue has been fixed in the commit b60a159fdc5bfcf9988d3a4cb6f53abe8ad5d35d
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 12:32 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/07/CVE-2026-56391 | third-party-advisory |
| https://git.savannah.gnu.org/cgit/coreutils.git/ | product |
| https://git.savannah.gnu.org/cgit/coreutils.git/c… | patch |
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CVE-2026-56391 (GCVE-0-2026-56391)
Vulnerability from cvelistv5 – Published: 2026-07-24 07:44 – Updated: 2026-07-24 12:31 X_Open Source
VLAI
EPSS
VEX
Title
Out‑of‑bounds Read in GNU coreutils
Summary
GNU coreutils uniq is vulnerable to an out‑of‑bounds read due to incorrect handling of multibyte input when the -w (--check-chars) option is used. The find_field() function miscalculates the byte length of characters by repeatedly processing a fixed pointer instead of advancing through the input, resulting in an inflated length value.
This incorrect length is later used in a memcmp operation, causing reads beyond the allocated buffer when processing crafted multibyte input.
When running GNU coreutils uniq with attacker-provided arguments, this behavior leads to a crash and potential adjacent heap memory exposure.
This issue has been fixed in the commit d64e35a8a4c0e4608321433e0d84d917e4e36371.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-24 12:31 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
3 references
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| https://git.savannah.gnu.org/cgit/coreutils.git/ | product |
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CVE-2026-53910 (GCVE-0-2026-53910)
Vulnerability from cvelistv5 – Published: 2026-07-22 13:42 – Updated: 2026-07-27 10:58 X_Open Source Disputed
VLAI
EPSS
VEX
Title
Heap-based Buffer Overflow in GNU diffutils
Summary
diff3 tool from GNU diffutils is vulnerable to a heap‑based buffer overflow due to multiple signed integer overflows in line‑mapping calculations. Incorrect arithmetic in mapping line ranges can result in corrupted values being used for memory allocation and loop bounds.
When processing crafted diff output, these overflows may cause the application to allocate insufficient memory and subsequently perform out‑of‑bounds writes during internal processing.
An attacker who can control the output of the diff program used by diff3 (e.g. via --diff-program pointing to a malicious script) can trigger out-of-bounds writes, resulting in a crash and potentially remote code execution depending on the environment.
This issue has been fixed in commit 9ff04d5b84743e331e80b589335a52c5480d1815
NOTE:
The project maintainers claim that this is not a security issue. They state that the worst outcome this issue can cause is a crash of diff and that it cannot be used to escalate privileges.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-22 19:11 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/07/CVE-2026-53910 | third-party-advisory |
| https://git.savannah.gnu.org/cgit/diffutils.git/ | product |
| https://cgit.git.savannah.gnu.org/cgit/diffutils.… | patch |
| https://cgit.git.savannah.gnu.org/cgit/diffutils.… | patch |
Date Public
2026-07-22 00:00
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CVE-2026-40553 (GCVE-0-2026-40553)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:00 X_Open Source
VLAI
EPSS
VEX
Title
Stack-based buffer overflow in gawk
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 13:00 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
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CVE-2026-40469 (GCVE-0-2026-40469)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
Integer overflow vulnerability has been found in "builtin.c" program file of gawk (do_sub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 13:00 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
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CVE-2026-40468 (GCVE-0-2026-40468)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 13:01 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
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Date Public
2026-07-13 12:07
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CVE-2026-40467 (GCVE-0-2026-40467)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:02 X_Open Source
VLAI
EPSS
VEX
Title
Use after free in gawk
Summary
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 13:02 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
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CVE-2026-15520 (GCVE-0-2026-15520)
Vulnerability from cvelistv5 – Published: 2026-07-13 01:15 – Updated: 2026-07-13 15:53 X_Open Source
VLAI
EPSS
VEX
Title
GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow
Summary
A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-13 15:53 UTC
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377849 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377849/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15520 | third-party-advisory |
| https://vuldb.com/submit/851190 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1251 | issue-tracking |
| https://github.com/advisories/GHSA-qg2f-8389-w95j | broken-linkissue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://github.com/LibreDWG/libredwg/commit/3d0f9… | patch |
| https://github.com/LibreDWG/libredwg/releases/tag… | patch |
| https://www.gnu.org/ | broken-linkproduct |
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CVE-2026-15184 (GCVE-0-2026-15184)
Vulnerability from cvelistv5 – Published: 2026-07-09 12:00 – Updated: 2026-07-09 12:55 X_Open Source
VLAI
EPSS
VEX
Title
GNU LibreDWG DWG File dwg.c dwg_next_entity null pointer dereference
Summary
A vulnerability was found in GNU LibreDWG up to 0.13.4. The impacted element is the function dwg_next_entity of the file src/dwg.c of the component DWG File Handler. Performing a manipulation of the argument next_obj results in null pointer dereference. The attack must be initiated from a local position. The exploit has been made public and could be used. Upgrading to version 0.14 is sufficient to resolve this issue. The patch is named dde45dac3c4d902e4d8fed150a8017b9732019c9. Upgrading the affected component is recommended. Different than CVE-2026-9503.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 12:54 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377110 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377110/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15184 | third-party-advisory |
| https://vuldb.com/submit/851192 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1253 | issue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://github.com/LibreDWG/libredwg/commit/dde45… | patch |
| https://github.com/LibreDWG/libredwg/releases/tag/0.14 | patch |
| https://www.gnu.org/ | broken-linkproduct |
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CVE-2026-15182 (GCVE-0-2026-15182)
Vulnerability from cvelistv5 – Published: 2026-07-09 11:30 – Updated: 2026-07-09 17:45 X_Open Source
VLAI
EPSS
VEX
Title
GNU LibreDWG BMP Image dwg.c dwg_bmp heap-based overflow
Summary
A vulnerability has been found in GNU LibreDWG up to 0.13.4. The affected element is the function dwg_bmp of the file src/dwg.c of the component BMP Image Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit has been disclosed to the public and may be used. Upgrading to version 0.14 is sufficient to fix this issue. The name of the patch is 18fd542bb4d5ccedf9de12052bf50068b2b26f06. It is suggested to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 17:45 UTC
Assigner
References
10 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/377109 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/377109/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-15182 | third-party-advisory |
| https://vuldb.com/submit/851191 | third-party-advisory |
| https://github.com/LibreDWG/libredwg/issues/1252 | issue-tracking |
| https://github.com/HackC0der/CVE-Repos/blob/main/… | exploit |
| https://github.com/LibreDWG/libredwg/commit/18fd5… | patch |
| https://github.com/LibreDWG/libredwg/releases/tag/0.14 | patch |
| https://github.com/LibreDWG/libredwg/issues/1249 | issue-tracking |
| https://www.gnu.org/ | broken-linkproduct |
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CVE-2026-56289 (GCVE-0-2026-56289)
Vulnerability from cvelistv5 – Published: 2026-07-09 09:29 – Updated: 2026-07-09 12:21 X_Open Source
VLAI
EPSS
VEX
Title
Loop with Unreachable Exit Condition in GNU patch
Summary
GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (single block of changes in diff) line offsets in unified-diff input. A specially crafted patch can specify an extremely large line number, causing the application to enter an effectively infinite processing loop while attempting to locate the requested position.
This results in excessive CPU consumption and prevents the process from completing.
An attacker can trigger this behavior by supplying a malicious patch file, causing the utility to become unresponsive and require manual termination.
This issue has been fixed in the commit faba04ef4f2b410257f76c1b9dc85e350929c4b9
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 12:20 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/07/CVE-2026-56288 | third-party-advisory |
| https://cgit.git.savannah.gnu.org/cgit/patch.git/ | product |
| https://cgit.git.savannah.gnu.org/cgit/patch.git/… | patch |
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CVE-2026-56288 (GCVE-0-2026-56288)
Vulnerability from cvelistv5 – Published: 2026-07-09 09:29 – Updated: 2026-07-09 12:57 X_Open Source
VLAI
EPSS
VEX
Title
NULL Pointer Dereference in GNU patch
Summary
GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) data structures, causing the application to pass a NULL pointer to fwrite() during patch processing.
An attacker can trigger this condition with a malicious patch file, causing the utility to crash and resulting in a denial of service.
This issue has been fixed in the commit e6d6a4e021660679d7fc9150f981d4920f722313
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-09 12:57 UTC
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
3 references
| URL | Tags |
|---|---|
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| https://cgit.git.savannah.gnu.org/cgit/patch.git/ | product |
| https://cgit.git.savannah.gnu.org/cgit/patch.git/… | patch |
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CVE-2026-58472 (GCVE-0-2026-58472)
Vulnerability from cvelistv5 – Published: 2026-07-07 19:50 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
EPSS
VEX
Title
GNU Wget 1.25.0 Heap Buffer Overflow via HTML Attribute Encoding
Summary
GNU Wget through 1.25.0, fixed in commit dd692d9, contains a heap buffer overflow vulnerability in the html_quote_string() function in src/convert.c that allows a remote attacker to trigger memory corruption by supplying a crafted HTML attribute with a large number of characters requiring entity encoding. A server-supplied HTML attribute causes a signed integer counter to overflow during output size accumulation, resulting in an undersized heap allocation and subsequent heap buffer overflow during the copy phase.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 13:45 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gnuwget/wget/-/commit/dd692d9c… | patch |
| https://www.vulncheck.com/advisories/gnu-wget-hea… | third-party-advisory |
Impacted products
Date Public
2026-06-29 00:00
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CVE-2026-58471 (GCVE-0-2026-58471)
Vulnerability from cvelistv5 – Published: 2026-07-07 19:47 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
EPSS
VEX
Title
GNU Wget 1.25.0 Heap Buffer Overflow via convert_fname() in url.c
Summary
GNU Wget through 1.25.0, fixed in commit c2640fe, contains a heap buffer overflow vulnerability in the convert_fname() function within src/url.c that allows remote attackers to trigger memory corruption through a server-supplied filename requiring character set conversion. When the output buffer is too small during iconv E2BIG reallocation, the reallocation logic miscalculates the remaining space, leading to a heap buffer overflow that can be exploited via a maliciously crafted server response.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 20:32 UTC
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
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2 references
| URL | Tags |
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| https://gitlab.com/gnuwget/wget/-/commit/c2640fe5… | patch |
| https://www.vulncheck.com/advisories/gnu-wget-hea… | third-party-advisory |
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Date Public
2026-01-13 00:00
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CVE-2026-58470 (GCVE-0-2026-58470)
Vulnerability from cvelistv5 – Published: 2026-07-07 19:45 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
EPSS
VEX
Title
GNU Wget 1.25.0 Integer Overflow via Content-Range Header Parsing
Summary
GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parse_content_range() function within src/http.c that allows server-controlled values to cause signed integer arithmetic to overflow. Attackers can supply malicious Content-Range header values to trigger undefined behavior and download desynchronization in the affected client.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 13:07 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gnuwget/wget/-/commit/43d3ba93… | patch |
| https://www.vulncheck.com/advisories/gnu-wget-int… | third-party-advisory |
Impacted products
Date Public
2026-06-29 00:00
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CVE-2026-58469 (GCVE-0-2026-58469)
Vulnerability from cvelistv5 – Published: 2026-07-07 19:43 – Updated: 2026-07-14 22:03 X_Open Source
VLAI
EPSS
VEX
Title
GNU Wget 1.25.0 Heap Buffer Underread via Metalink URL Parsing
Summary
GNU Wget through 1.25.0, fixed in commit 37a40fc, contains a heap buffer underread vulnerability in the clean_metalink_string() function within src/metalink.c that allows a malicious server to trigger memory corruption by serving a Metalink document containing a whitespace-only URL. Attackers can cause the function to decrement a pointer past the start of the buffer when processing an all-whitespace Metalink URL, potentially leading to abnormal program behavior.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-08 13:36 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gitlab.com/gnuwget/wget/-/commit/37a40fcb… | patch |
| https://www.vulncheck.com/advisories/gnu-wget-hea… | third-party-advisory |
Impacted products
Date Public
2026-06-29 00:00
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CVE-2026-41992 (GCVE-0-2026-41992)
Vulnerability from cvelistv5 – Published: 2026-06-29 10:15 – Updated: 2026-08-27 11:39 X_Open Source
VLAI
EPSS
VEX
Title
Global Buffer Overflow in GNU gzip
Summary
GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array that is shared across the LZ77, LZW, and LZH decompression routines and is not reinitialized between files processed in the same invocation.
By decompressing a specially crafted LZW file followed by a specially crafted LZH file in a single gzip -d command, an attacker can poison the shared global state and subsequently trigger an out‑of‑bounds read in the LZH decoder. The LZH decompression logic follows stale values left in the shared array, causing reads past the end of the allocated global buffer.
This issue has been fixed in commits 63dbf6b3b9e6e781df1a6a64e609b10e23969681 and e7378c2d421be6a286922374425680bbe9ad8b7d.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 13:30 UTC
CWE
- CWE-126 - Buffer Over-read
Assigner
References
7 references
Impacted products
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